AlphaBAT Members Profile 2026: Bio, Ages & Interesting Facts
AlphaBAT (알파벳) is a South Korean boy group known for its reek-letter stage-name concept and a career marked by repeated lineup changes. The group formally re-debuted as a nine-member act in November 2013 under Simtong Entertainment after an earlier two-member incarnation in 2012. Its debut song was “AB City,” a track that introduced the group’s alphabet-centered identity.
As of September 2026, the lineup generally documented by the most recently updated profile sources consists of B:eta, G:amma, and L:ambda. AlphaBAT has been described as being on indefinite hiatus, with no new group release verified after the 2020 special single “Again” (불러본다).
The group’s story is more extensive than its current three-member lineup suggests. Former members C:ode, D:elta, E:psilon, F:ie, H:eta, I:ota, J:eta, K:appa and the original member Kyumin were part of different stages of AlphaBAT’s development.
This profile focuses on information that can be supported by available public sources. Where personal details, current activities or official status cannot be reliably established, they are not presented as confirmed facts.
Quick Facts About AlphaBAT
| Fact | Information |
|---|---|
| Group Name | AlphaBAT |
| Korean Name | 알파벳 |
| Origin | South Korea |
| Genre | K-pop, hip-hop, dance, electronic |
| Formal Group Debut | November 2013 |
| Debut Song | “AB City” |
| Debut Agency | Simtong Entertainment |
| Later Agency | APB Entertainment |
| Current Documented Members | B:eta, G:amma, L:ambda |
| Original 2013 Lineup | 9 members |
| Fandom Name | Alpha |
| Official Color | Not officially confirmed |
| Current Status | Indefinite hiatus / inactive group promotions |
| Latest Group Single | “Again” / 불러본다, 2020 |
The exact debut date is reported differently by some databases. Soompi’s contemporary coverage describes the November 2013 debut, while profile databases commonly use November 14, 2013 as the group’s formal M Countdown debut. The distinction matters because AlphaBAT’s first televised performance and its official debut-stage date are sometimes listed separately.
Table of Contents
Who Is AlphaBAT?
AlphaBAT is a South Korean male idol group whose identity was built around an unusual naming system: members were assigned stage names based largely on Greek letters. The concept was already visible in the group’s debut promotion, with members introduced alphabetically and names such as B:eta, C:ode, D:elta, E:psilon and F:ie. Soompi noted that the concept helped audiences distinguish the nine members during the group’s debut promotions.
The group originally began as a duo involving Kyumin and Selin under YUB Entertainment in 2012. After that version ended, Selin continued the AlphaBAT project under the stage name I:ota, while Kyumin left. AlphaBAT was subsequently rebuilt under Simtong Entertainment and re-debuted with nine members in 2013.
During its active years, AlphaBAT released music ranging from electronic dance and hip-hop-oriented material to more melodic songs. Its early catalog included “AB City,” “Surprise Party,” “Always,” “Tantara,” “Oh My Gosh!” and “Pass Out.” Later releases included “Get Your Luv,” “New World,” “Fly” and “Again.”
The group also developed an overseas fan presence, including several showcases in Malaysia in 2014. Those events provide an example of how AlphaBAT promoted outside Korea during its early career.
AlphaBAT Group History
The 2012 Beginning: Kyumin and Selin
AlphaBAT’s earliest form was a two-member project featuring Kyumin and Selin. The duo debuted under YUB Entertainment in 2012. Both later left YUB Entertainment, but their paths diverged: Kyumin left AlphaBAT, while Selin continued with the project and eventually became known as I:ota.
This early history is important because many older AlphaBAT profiles describe 2012 as the group’s first debut, while other sources use November 2013 as the official group debut. Both dates appear in historical material because AlphaBAT effectively had an earlier two-member incarnation and a later nine-member re-debut.
2013: Nine-Member Re-Debut
AlphaBAT was rebuilt under Simtong Entertainment with nine members: B:eta, C:ode, D:elta, E:psilon, F:ie, G:amma, H:eta, I:ota and J:eta.
The group introduced its Greek-letter naming system as part of its identity. Contemporary Soompi coverage reported that the nine members were presented through the alphabet concept before the release of “AB City.”
“AB City” was released as AlphaBAT’s debut single in November 2013. Its music video used alphabet imagery throughout the visual concept, while the song itself incorporated the letters of the English alphabet into its central hook.
AlphaBAT also released the Christmas-themed digital single “Surprise Party” in December 2013. The song helped establish the group’s fandom name, Alpha, which remains the name associated with its fan community.
2014: Attention and Answer
2014 was one of the group’s busiest early periods.
Before its first mini album, AlphaBAT released “Always,” a medium-tempo ballad dedicated to its fans. Soompi reported that B:eta participated in composing and producing the song with the composing team Real Men, while members contributed lyrics.
The group’s first mini album, Attention, followed in February 2014. Its material included “Tantara,” “Always,” “AB City” and “Surprise Party.”
AlphaBAT returned later in 2014 with its second mini album, Answer. The release featured “Oh My Gosh!” and “Pass Out,” with Soompi reporting that the second mini album was scheduled for August 22, 2014.
The group also performed overseas during this period. In April 2014, AlphaBAT held showcases in Malaysia, and in August the group returned for additional Malaysian events in Ipoh, Melaka and Kuala Lumpur.
Lineup Changes After the Early Years
AlphaBAT’s later history was strongly shaped by military service and member departures.
C:ode, D:elta, F:ie, I:ota and J:eta all left the group in November 2016 according to the profile record. H:eta later entered military service in 2017.
K:appa was subsequently introduced as a new member in November 2016, and AlphaBAT continued activities with a changing lineup. In 2017, the group released Get Your Luv, while H:eta’s military enlistment affected the active lineup.
2018: L:ambda Joins
In September 2018, L:ambda was introduced as AlphaBAT’s newest member. He joined B:eta, E:psilon, G:amma and K:appa, creating the five-member lineup that became associated with AlphaBAT’s later period.
The group released New World in October 2018. Apple Music and other music catalogs list “New World” as an EP-era release, while the title track helped introduce the revised five-member era.
2019: “Fly”
AlphaBAT returned with the digital single “Fly” in April 2019. The music video followed in September. Around the same period, E:psilon announced his military enlistment.
The group also used a Makestar project in November 2019 to raise funds for a planned release. The project reportedly reached its 7 million won goal.
2020: “Again”
AlphaBAT’s latest documented group release is the special single “Again” (불러본다), released on February 11, 2020. Korean music platform Bugs lists the release as a single, while other music databases identify it as a special single.
“Again” was a two-track release containing the main song and instrumental version. It was produced under APB Entertainment and distributed through Danal Entertainment.
2021–2026: Hiatus and Individual Activities
In July 2021, E:psilon and K:appa were officially reported as having departed AlphaBAT. After those departures, the group was left with B:eta, G:amma and L:ambda.
KProfiles currently describes AlphaBAT as being on indefinite hiatus, while Kpopping lists the group as a three-member group with hiatus status. There is no verified group comeback announcement located for 2026.
That does not mean all former members disappeared from entertainment. B:eta, for example, continued music activities after AlphaBAT’s group promotions slowed considerably.
AlphaBAT Agency and Management
AlphaBAT’s best-documented debut-era agency was Simtong Entertainment. The group was formed/rebuilt there for its nine-member 2013 debut. Later sources associate AlphaBAT with W Entertainment and APB Entertainment during different stages of its career.
By the group’s later period, APB Entertainment was associated with AlphaBAT. Kpopping lists SimTong Entertainment for 2013–2016 and identifies APB Entertainment in its current group biography.
Because AlphaBAT has remained inactive for several years, the phrase “current agency” should be treated carefully. There is not a recent 2026 agency announcement clearly confirming an ongoing exclusive group contract. Therefore, APB Entertainment is best described as the last documented agency associated with AlphaBAT rather than an independently verified 2026 management arrangement.
Current AlphaBAT Members 2026
As of September 2026, the three members most consistently identified as the remaining AlphaBAT lineup are:
- B:eta
- G:amma
- L:ambda
KProfiles and Kpopping both identify these three members, although some older pages still contain historical five-member information.
B:eta Profile
B:eta, whose birth name is Ji Ha Yong (지하용), is AlphaBAT’s leader and main vocalist. He was born on May 20, 1987, making him the oldest member of the current lineup. His reported height is 172 cm and his blood type is O.
| Detail | Information |
|---|---|
| Stage Name | B:eta |
| Korean Name | 베타 |
| Birth Name | Ji Ha Yong |
| Birthday | May 20, 1987 |
| Age in September 2026 | 39 |
| Zodiac Sign | Taurus |
| Chinese Zodiac | Rabbit |
| Position | Leader, Main Vocalist |
| Height | 172 cm |
| Weight | 60 kg |
| Blood Type | O |
| MBTI | Not publicly verified |
| Nationality | South Korean |
| Birthplace | South Korea is reported; more specific reliable information is not publicly available |
Before AlphaBAT, B:eta was a member of the boy group HITT. His experience before AlphaBAT distinguishes him from several members who entered the group as newer trainees. He joined the AlphaBAT lineup during the group’s 2013 formation period and took the leadership and main-vocal role.
B:eta also had a period away from group promotions because of mandatory military service. He enlisted on March 31, 2015 and returned after completing his service in 2017. His absence contributed to changes in AlphaBAT’s activities during that period.
Music has remained part of B:eta’s post-AlphaBAT career. In December 2022, he became part of the duo Cruffin with Kim Taehyung, a former member of Click-B. The duo released “My Christmas” on December 15, 2022.
B:eta also released music as a solo artist. Korean music platform Bugs lists “너라는 계절” as a single released on June 13, 2025 under the artist name Ji Ha Yong. The release credits BETA as a co-writer and co-composer, and the song is described as an acoustic ballad.
B:eta’s reported hobbies include watching movies and exercising, and he has also been associated with kendo. These details come from profile sources rather than a current official artist biography, so they should be understood as biographical information rather than current lifestyle reporting.
B:eta Career After AlphaBAT
B:eta’s later career demonstrates that AlphaBAT’s hiatus did not completely end his musical work. His activities include:
- AlphaBAT
- HITT
- Cruffin
- Solo music under Ji Ha Yong/BETA
His 2025 single “너라는 계절” is particularly relevant to a 2026 profile because it provides recent evidence of his continued musical activity.
B:eta Family and Relationship Status
Detailed family information is not publicly available from sufficiently reliable sources.
There is no publicly confirmed relationship information that should be treated as current fact.
B:eta Net Worth
B:eta’s exact net worth is not publicly available. No reliable financial source was found that provides a verified figure.
G:amma Profile
G:amma, born Kim Jun Su (김준수), is the youngest member of AlphaBAT’s current lineup. He was born on February 9, 1993, and is listed as a lead vocalist and maknae. His reported height is 183 cm and his blood type is O.
| Detail | Information |
|---|---|
| Stage Name | G:amma |
| Korean Name | 감마 |
| Birth Name | Kim Jun Su |
| Birthday | February 9, 1993 |
| Age in September 2026 | 33 |
| Zodiac Sign | Aquarius |
| Chinese Zodiac | Rooster |
| Position | Lead Vocalist, Maknae |
| Height | 183 cm |
| Weight | 67 kg |
| Blood Type | O |
| MBTI | Not publicly verified |
| Nationality | South Korean |
| Birthplace | South Korea is reported; specific location is not reliably verified |
G:amma was part of AlphaBAT from its nine-member 2013 debut and remained with the group through its later lineup changes. His continued presence alongside B:eta and L:ambda makes him one of the three members most consistently identified with AlphaBAT’s current lineup.
He is also described in profile sources as the group’s tallest member. His reported height of 183 cm places him above B:eta and L:ambda in the current lineup.
G:amma has several music-related and personal interests documented in older profile material. He is described as being ambidextrous, enjoying basketball and having piano as a specialty. His favorite food has been listed as tteokbokki. These details are historical profile information rather than necessarily current preferences.
G:amma’s military service also affected AlphaBAT’s later activity. KProfiles reported that he was completing military service during the group’s hiatus, with the expected completion date given as June 2023. Because that information is historical, it should not be interpreted as describing his current military status in 2026.
G:amma’s Role in AlphaBAT
G:amma’s role has primarily centered on vocals. His position as maknae also remained a recognizable part of AlphaBAT’s lineup structure. Unlike the group’s rappers, his documented role was mainly vocal, contributing to the melodic side of AlphaBAT’s releases.
He participated across multiple eras of the group, including the early nine-member period, the five-member era and the later three-member lineup.
G:amma Current Status
The latest reliable information does not show a new AlphaBAT group release in 2026. Kpopping lists AlphaBAT as being on hiatus, while KProfiles describes the group as in indefinite hiatus.
G:amma and B:eta did, however, publicly mark AlphaBAT’s 11th anniversary in November 2024 through Instagram posts, according to the documented history of the group.
G:amma Family, Relationships and Net Worth
Detailed family information is not publicly available.
There is no publicly confirmed current relationship information that can be responsibly presented as fact.
G:amma’s exact net worth is not publicly available.
L:ambda Profile
L:ambda, born Lee Yeon Woo (이연우), became AlphaBAT’s newest member in 2018. He was born on May 11, 1992, and is listed as a vocalist and visual. His reported height is 177 cm and his blood type is O.
| Detail | Information |
|---|---|
| Stage Name | L:ambda |
| Korean Name | 람다 |
| Birth Name | Lee Yeon Woo |
| Birthday | May 11, 1992 |
| Age in September 2026 | 34 |
| Zodiac Sign | Taurus |
| Chinese Zodiac | Monkey |
| Position | Vocalist, Visual |
| Height | 177 cm |
| Weight | 56 kg |
| Blood Type | O |
| MBTI | Not publicly verified |
| Nationality | South Korean |
| Birthplace | Not publicly available |
His arrival was significant because it marked another stage in AlphaBAT’s long-running lineup evolution. Soompi reported in September 2018 that the group had added L:ambda and would return as a five-member group with B:eta, E:psilon, G:amma and K:appa.
L:ambda had already completed mandatory military service before joining AlphaBAT, according to his profile information. He had reportedly trained for a significant period before eventually joining the group through a personal connection. Because the detailed training history is not supported by a current official biography, it is safer to describe him simply as a later addition to AlphaBAT rather than attach an exact training duration.
His arrival also coincided with AlphaBAT’s 2018 return. The group released New World, expanding its music catalog after the earlier “Get Your Luv” period.
L:ambda was therefore part of the group’s final active five-member era before E:psilon and K:appa left in 2021.
L:ambda’s profile information also states that he enjoys sightseeing and old buildings and has an interest in Marvel movies and cartoons. These are personal-interest details reported by profile sources and should not be treated as current unless he has recently reconfirmed them.
L:ambda Activities
L:ambda participated in AlphaBAT’s late group period, including the 2018 “New World” era, the 2019 “Fly” period and the 2020 “Again” release.
He was also reported to have been studying directing and screenwriting in 2023. Because no newer verified source confirms his current educational status in 2026, that information is best treated as historical.
L:ambda Family, Relationships and Net Worth
Some profile material mentions an older brother, but detailed family information is not publicly available.
There is no publicly confirmed current relationship information.
L:ambda’s exact net worth is not publicly available.
Former AlphaBAT Members
AlphaBAT’s lineup changed considerably between 2012 and 2021. The following members are treated as former members rather than part of the 2026 lineup.
Kyumin
Kyumin, born Cho Gyu Min, was part of AlphaBAT’s original 2012 duo with Selin. The pair initially debuted under YUB Entertainment before leaving the agency. Kyumin then decided to leave the AlphaBAT project while Selin continued under the I:ota identity.
Kyumin later used the stage name Peter as a member of Off The Cuff. He also released a solo digital single titled “Amazing Grace” in October 2020 under Purple Star Entertainment, according to KProfiles.
His role in AlphaBAT was rapper.
C:ode
C:ode, born Kim Sang Hun, was part of AlphaBAT’s original nine-member lineup. He was listed as a vocalist, rapper and main dancer. He left the group on November 1, 2016.
Profile sources also report that he had completed military service and had a strong interest in dance.
D:elta
D:elta, born Choi Yeon Soo, was a vocalist and member of the original nine-member AlphaBAT lineup. He was born in 1991 and was associated with the vocal side of the group.
He was also part of the informal “Trio 91” grouping with E:psilon and F:ie. D:elta left AlphaBAT on November 1, 2016.
E:psilon
E:psilon, born Yoo Yeong Jin, was one of AlphaBAT’s original members and was associated with vocals, rap and dance. He was born August 6, 1991.
E:psilon left the group for military service and did not return to AlphaBAT. His official departure was announced in July 2021, along with K:appa’s departure.
E:psilon was also publicly known as the older brother of TEEN TOP member Ricky.
F:ie
F:ie, born Lee San Ha, was a vocalist and lead rapper in AlphaBAT’s original lineup. He was born October 10, 1991.
He was part of Trio 91 with D:elta and E:psilon and was associated with choreography and piano. He left AlphaBAT on November 1, 2016.
H:eta
H:eta, born Seol Jun, was a vocalist and visual member of AlphaBAT. He was born May 8, 1993.
H:eta remained in the group after several of the 2016 departures but later entered mandatory military service in July 2017. His service was reported as ending in 2019.
I:ota
I:ota, born Shin Se Lin, has a particularly important place in AlphaBAT history because he was the same person known as Selin in the original duo.
He was an underground rapper before AlphaBAT and was associated with the group’s main rap role. He left AlphaBAT on November 1, 2016.
J:eta
J:eta, born Kim Su Yeob, was a vocalist and rapper and served as the maknae of the original nine-member group.
He left AlphaBAT on November 1, 2016 and subsequently enlisted for military service in November of that year.
K:appa
K:appa, born Lee Yong Hun, joined AlphaBAT in 2016 and became part of the group’s later five-member lineup.
He was listed as a lead vocalist and participated in the group’s later releases, including the period leading to “New World,” “Fly” and “Again.” K:appa officially left AlphaBAT in July 2021.
AlphaBAT Discography
AlphaBAT’s official discography is relatively compact compared with the number of years covered by its career.
Major Releases
| Year | Release | Type | Key Track |
|---|---|---|---|
| 2013 | AB City | Digital single | “AB City” |
| 2013 | Surprise Party | Digital single | “Surprise Party” |
| 2014 | Always | Digital single | “Always” |
| 2014 | Attention | Mini album | “Tantara” |
| 2014 | Answer | Mini album | “Oh My Gosh!” |
| 2017 | Get Your Luv | EP / mini album | “Get Your Luv” |
| 2018 | New World | EP / mini album | “New World” |
| 2019 | Fly | Digital single | “Fly” |
| 2020 | Again / 불러본다 | Special single | “Again” |
Korean music platform Bugs lists releases including AB City, Surprise Party, Always, Attention, Answer, Get Your Luv and 불러본다, while Apple Music additionally lists New World and Fly.
“AB City”
“AB City” established AlphaBAT’s alphabet concept. Soompi’s contemporary coverage highlighted the song’s use of the English alphabet and the group’s Greek-letter stage names.
“Tantara”
“Tantara” was one of the central tracks from the group’s first mini album, Attention. It helped move AlphaBAT beyond its initial debut single and became part of the group’s early live repertoire.
“Always”
“Always” stands out because members were involved in its creation. The song was presented as a thank-you to AlphaBAT’s fans and showed a softer side of the group’s music.
“Oh My Gosh!”
“Oh My Gosh!” was the title track associated with the Answer era in 2014. The release demonstrated the group’s continued use of dance-oriented material while retaining its recognizable member-name concept.
“Get Your Luv”
“Get Your Luv” represented AlphaBAT’s return to group activities in 2017 after a period of lineup disruption. The group held a small showcase around the release and later performed the song on Music Bank.
“New World”
“New World” was released in 2018 after L:ambda joined the group. It is therefore particularly useful when tracing AlphaBAT’s transition into its five-member era.
“Fly”
“Fly” arrived in April 2019 and received a later music-video release in September. It was one of AlphaBAT’s final group singles before “Again.”
“Again”
“Again,” released February 11, 2020, is the latest clearly documented AlphaBAT group release. It contains the title song and an instrumental version.
AlphaBAT’s Music Style and Artistic Evolution
AlphaBAT’s early music combined dance-pop, hip-hop and electronic elements. “AB City” used the group’s alphabet concept as both a lyrical and visual device, while later releases broadened the group’s sound.
The early catalog contains clear contrast. “Tantara” and “Oh My Gosh!” were performance-focused songs designed for music-show stages, while “Always” leaned into a ballad format.
Rap was also an important part of AlphaBAT’s identity. I:ota was identified as a main rapper, while F:ie, E:psilon and other members had rap responsibilities at different stages. This helped the group maintain a hip-hop influence even when its releases leaned toward dance-pop.
The group’s later material became somewhat more varied. “New World,” “Fly” and “Again” belong to different phases of AlphaBAT’s career, with “Again” particularly notable for its ballad-oriented presentation.
One of the clearest artistic constants was the member-name concept. Even as the lineup changed repeatedly, the Greek-letter identity remained a recognizable part of AlphaBAT’s branding.
Awards and Achievements
Available historical sources record at least two notable 2014 honors.
| Year | Award / Achievement | Result |
|---|---|---|
| 2014 | 22nd Korea Culture Entertainment Awards – Rookie of the Year | Won |
| 2014 | 9th Korea Social Contribution Awards – Ambassador Award | Won |
The Rookie of the Year result is also linked in historical references to a Korean report about AlphaBAT receiving the award.
No reliable evidence was found for a major music-show No. 1 win. Historical chart records show AlphaBAT appeared on several Korean music programs, but available records do not establish a first-place music-show victory.
Chart Performance
AlphaBAT’s early releases appeared on Korean album charts, including Attention and Answer. Historical records place Attention at No. 20 and Answer at No. 23 on the relevant Gaon album charts.
These figures should be understood as historical chart positions rather than current popularity measurements.
AlphaBAT Tours, Showcases and Overseas Activities
AlphaBAT developed an overseas presence through showcases and fan events.
2014 Malaysia Showcase
In April 2014, AlphaBAT held its first overseas showcases in Malaysia, including events in Johor Bahru and Kuala Lumpur. The trip combined performances with an audition intended to identify a potential additional member.
August 2014 Malaysia Events
The group returned to Malaysia in August 2014 for a three-city Selamat Hari Raya showcase series in Ipoh, Melaka and Kuala Lumpur.
2019 World Tour
Historical AlphaBAT records list a 2019 World Tour titled “The Revival.” Because detailed primary documentation for every stop is not readily available in the sources reviewed, individual tour dates are not reproduced here as confirmed facts.
Brand Endorsements and Partnerships
AlphaBAT had commercial activities during its early career, including association with BOY LONDON Korea. The group was promoted through BOY LONDON-related pre-debut material before its official 2013 debut.
However, a complete, independently verified historical endorsement database is not publicly available. Individual advertisements should not automatically be described as ambassador appointments.
For that reason, no unverified list of “official ambassadors” is included here.
AlphaBAT Social Media Presence
Older profile sources list the following accounts as official AlphaBAT channels:
| Platform | Historically Listed Account |
|---|---|
| @alphabatofficial_ | |
| officialalphabat | |
| X / Twitter | @AlphaBAT_APB |
| YouTube | @AlphaBATOFFICIAL |
| TikTok | @alphabat_official |
| Fan Cafe | AlphaBAT |
KProfiles currently lists these accounts, but the existence of an account does not necessarily mean it remains actively maintained in 2026.
Therefore, readers should check the account’s recent posting history before treating it as an active official channel.
AlphaBAT Revenue Sources
No reliable public financial records provide AlphaBAT’s individual earnings or total group income.
As with most idol groups, documented revenue categories during AlphaBAT’s active period included:
- Music releases
- Physical album sales
- Digital music
- Concerts and showcases
- Overseas events
- Merchandise
- Advertising and promotional activities
- Individual member activities
The group also participated in overseas showcases, while members later pursued individual projects.
Exact revenue figures, salaries and member net worth estimates are not publicly available from sufficiently reliable financial sources.
Interesting Facts About AlphaBAT
- AlphaBAT has two important debut dates in its history: the project first appeared as a duo in 2012 and later re-debuted as a nine-member group in 2013.
- The Korean name of AlphaBAT is 알파벳, which corresponds to “alphabet.”
- The original nine-member lineup used Greek-letter-inspired stage names, creating the group’s distinctive identity.
- I:ota was originally known as Selin when AlphaBAT existed as a duo.
- Kyumin was the other member of the original duo before leaving AlphaBAT.
- B:eta is AlphaBAT’s leader and main vocalist.
- G:amma is the youngest member of the current lineup.
- G:amma is also listed as AlphaBAT’s tallest member, at 183 cm.
- L:ambda was the newest member, joining in 2018.
- AlphaBAT’s fandom name is Alpha.
- The group released the fan-dedicated song “Always” in 2014.
- “AB City” was built around an alphabet concept, matching the group’s name.
- AlphaBAT performed in Malaysia multiple times in 2014, including a three-city August showcase.
- B:eta previously belonged to the boy group HITT.
- B:eta later became part of the duo Cruffin with former Click-B member Kim Taehyung.
- B:eta released the solo single “너라는 계절” in 2025.
- E:psilon is the older brother of TEEN TOP’s Ricky, according to profile sources.
- E:psilon and K:appa officially departed AlphaBAT in July 2021.
- “Again” is the latest clearly documented AlphaBAT group release, arriving in February 2020.
- AlphaBAT was still being publicly acknowledged by B:eta and G:amma in November 2024, when they marked the group’s 11th anniversary.
Frequently Asked Questions About AlphaBAT
Who is the leader of AlphaBAT?
B:eta (Ji Ha Yong) is AlphaBAT’s leader and main vocalist.
How many members does AlphaBAT have in 2026?
The latest consistently updated profile sources identify three members: B:eta, G:amma and L:ambda.
Who are the current AlphaBAT members?
The current documented lineup is B:eta, G:amma and L:ambda.
When did AlphaBAT debut?
AlphaBAT’s history includes a 2012 two-member debut, but the group re-debuted as a nine-member group in November 2013. November 14, 2013 is commonly used for the formal group debut.
What is AlphaBAT’s fandom name?
AlphaBAT’s fandom is called Alpha.
What agency debuted AlphaBAT?
AlphaBAT was rebuilt and formally debuted as a nine-member group under Simtong Entertainment in 2013.
Is AlphaBAT still active?
AlphaBAT is currently described by profile sources as being on indefinite hiatus. There is no verified 2026 group comeback located in the sources reviewed.
What was AlphaBAT’s debut song?
AlphaBAT debuted with “AB City.” Contemporary Soompi coverage reported the song’s release and its alphabet-themed concept.
Who is the oldest AlphaBAT member?
B:eta, born May 20, 1987, is the oldest member of the current lineup.
Who is the youngest AlphaBAT member?
G:amma, born February 9, 1993, is the youngest member of the current lineup.
Who is the tallest AlphaBAT member?
G:amma is listed as the tallest current member at 183 cm.
Who is the newest AlphaBAT member?
L:ambda is the newest member of the current lineup. He joined the group in 2018.
What happened to AlphaBAT’s former members?
AlphaBAT experienced multiple lineup changes over the years. Several original members left in 2016, H:eta later entered military service, and E:psilon and K:appa departed in 2021.
What was AlphaBAT’s last group song?
The latest clearly documented AlphaBAT group release is “Again” (불러본다), released February 11, 2020.
Did AlphaBAT win any awards?
Historical records list AlphaBAT as winning the Rookie of the Year category at the 22nd Korea Culture Entertainment Awards in 2014 and an Ambassador Award at the 9th Korea Social Contribution Awards.
Did AlphaBAT have a music-show win?
No reliable source reviewed confirms a No. 1 music-show win for AlphaBAT. Historical records show the group appeared on Korean music programs and achieved chart placements, but a first-place music-show result has not been verified.
Where is B:eta now?
B:eta has continued music-related activities outside AlphaBAT. He became part of Cruffin in 2022 and released the solo single “너라는 계절” in June 2025.
What is AlphaBAT’s official color?
A consistently verified official group color was not found. KProfiles lists the official color as “–,” so it should be treated as not officially confirmed.
What is AlphaBAT’s net worth?
The group’s exact net worth and the individual members’ net worth figures are not publicly available from reliable financial sources.
Conclusion
AlphaBAT’s history is defined by reinvention. The project began as a duo in 2012, returned as a nine-member group in 2013, and eventually went through several generations of members before reaching its final documented three-member lineup of B:eta, G:amma and L:ambda.
The group built its identity around Greek-letter stage names, released music across dance, hip-hop, electronic and ballad styles, performed overseas and earned recognition during its early years. Its 2020 single “Again” remains the latest clearly documented group release.
By 2026, AlphaBAT is best described as a group on indefinite hiatus rather than an actively promoting idol group. At the same time, the careers of individual members have continued in different directions. B:eta, in particular, has remained musically active through Cruffin and solo work, including his 2025 single “너라는 계절.”
For fans researching AlphaBAT members, the most important distinction is between the group’s original nine-member era, its later five-member lineup and the three members currently documented as remaining with the group.
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