TUNEXX Members Profile 2026: Debut, Ages, MBTI & Facts
TUNEXX is a seven-member K-pop boy group managed by IST Entertainment. The group officially debuted on March 3, 2026, with its first mini-album, SET BY US ONLY, and followed it with the second mini-album, BLUE MODE, on September 2, 2026. Its members are Donggyu, Inhu, Taira, Sungjun, Zeon, Sihwan and Arctic.
The group’s name combines the word “TUNE” with “X,” which represents the ideas of being unclassified and crossing boundaries. This concept reflects the group’s stated identity of bringing different personalities and abilities together through music.
Four members-Donggyu, Inhu, Sihwan and Arctic-previously appeared on the Mnet survival program BOYS II PLANET. The other members completed the seven-person lineup before the group’s official debut.
This TUNEXX members profile covers their publicly documented birthdays, ages, music releases, career beginnings and other important group facts as of October 27, 2026.
TUNEXX Quick Facts
| Category | Details |
|---|---|
| Group name | TUNEXX |
| Korean name | 튜넥스 |
| Group type | K-pop boy group |
| Agency | IST Entertainment |
| Number of members | 7 |
| Members | Donggyu, Inhu, Taira, Sungjun, Zeon, Sihwan, Arctic |
| Official debut | March 3, 2026 |
| Debut mini-album | SET BY US ONLY |
| Debut title track | I’m Alive / Proof That I Am Alive |
| Second mini-album | BLUE MODE |
| BLUE MODE release date | September 2, 2026 |
| Fandom name | TUEWIN, as reported in the Korea Herald’s September 2026 coverage |
| Pre-debut release | One Last Chance |
| Management company | IST Entertainment |
| Official slogan | TUNE IN TO OUR FREQUENCY |
| Official website | tunexx.co.kr |
The group’s lineup, birthdays, debut releases and album information are documented on the official IST Entertainment artist page and in agency announcements. The fandom name is also referenced in a Korea Herald interview with the members.
Table of Contents
Who Are the TUNEXX Members?
The seven members of TUNEXX are Donggyu, Inhu, Taira, Sungjun, Zeon, Sihwan and Arctic. They debuted together under IST Entertainment in March 2026.
Their official profile lists their birthdays, allowing readers to compare their ages without relying on potentially outdated fan databases. As of October 27, 2026, the members range in age from 17 to 21.
1. Donggyu (동규)
Birthday: March 16, 2005
Age: 21
Agency: IST Entertainment
Group: TUNEXX
Donggyu is a member of TUNEXX and serves as the group’s leader, according to established Korean entertainment coverage. Before debuting with the group, he participated in Mnet’s survival program BOYS II PLANET.
The program gave viewers an opportunity to see him perform before the final TUNEXX lineup was established. In an interview with the Korea Herald, Donggyu discussed how the competition helped him evaluate his strengths and identify areas in which he needed to improve.
His leadership also became part of the group’s development following its debut. During the BLUE MODE era, the members discussed their growing teamwork and their efforts to build a shared musical identity.
Donggyu’s birthday is confirmed on IST Entertainment’s official artist profile.
2. Inhu (인후)
Birthday: January 22, 2005
Age: 21
Agency: IST Entertainment
Group: TUNEXX
Inhu is one of the seven members of TUNEXX. Like Donggyu, he appeared on BOYS II PLANET before joining the group.
His participation in the survival program preceded his official debut with IST Entertainment. After the group debuted, Inhu became involved in its musical development.
One of his notable contributions came with the second mini-album, BLUE MODE. The Korea Herald reported that Inhu received his first official songwriting credits on the release, marking an important step in his development as a recording artist.
In an interview with the publication, he discussed receiving help from other members while working on lyrics. His comments offered a glimpse into the collaborative process behind the group’s music.
Inhu’s birthday is January 22, 2005, according to the agency’s official profile.
3. Taira (타이라)
Birthday: April 3, 2005
Age: 21
Agency: IST Entertainment
Group: TUNEXX
Taira is one of the five TUNEXX members born in 2005. He joined the group alongside Donggyu, Inhu, Sungjun, Zeon, Sihwan and Arctic as part of the final seven-member lineup.
Taira contributed to the development of BLUE MODE, the group’s second mini-album, released in September 2026. According to the Korea Herald, he was among the five members who contributed lyrics to the release.
His involvement in songwriting helped expand the group’s creative participation beyond its debut material.
In the same interview, Taira spoke about wanting TUNEXX to be recognized for its abilities across singing, dancing and performance. His comments reflected the group’s ambition to develop a versatile musical identity.
IST Entertainment lists his birthday as April 3, 2005.
4. Sungjun (성준)
Birthday: July 18, 2005
Age: 21
Agency: IST Entertainment
Group: TUNEXX
Sungjun is a member of TUNEXX whose public career began with the group’s activities ahead of its official debut.
He was not among the members identified in the agency’s announcement as having participated in BOYS II PLANET. Instead, he joined the final lineup that debuted under IST Entertainment in March 2026.
In the Korea Herald’s September 2026 interview, Sungjun reflected on the group’s progress during its first six months as an active act. He described the members as becoming more comfortable on stage and more confident while preparing for performances.
That period included the release of BLUE MODE, which explored a more collective group identity than the debut mini-album.
Sungjun’s birthday is July 18, 2005, according to IST Entertainment’s official profile.
5. Zeon (제온)
Birthday: July 20, 2005
Age: 21
Agency: IST Entertainment
Group: TUNEXX
Zeon is one of TUNEXX’s seven members. His official stage name is written as 제온 in Korean.
He became involved in songwriting through the group’s releases, including work connected to its debut material. His contributions continued with BLUE MODE, which featured lyrics written by several members.
The Korea Herald also reported that Zeon had been exploring songwriting since his trainee days. In the publication’s interview, he discussed how the members learned from one another’s experiences, including those who had appeared on BOYS II PLANET.
This collaborative approach became a notable part of the group’s second mini-album era.
Zeon’s birthday is July 20, 2005, according to the official agency profile.
6. Sihwan (시환)
Birthday: November 28, 2005
Age: 20
Agency: IST Entertainment
Group: TUNEXX
Sihwan is a member of TUNEXX who appeared on BOYS II PLANET before the group debuted.
He joined the final lineup alongside Donggyu, Inhu, Taira, Sungjun, Zeon and Arctic. The group officially entered the K-pop market in March 2026 with SET BY US ONLY.
Sihwan has also participated in songwriting. IST Entertainment’s announcement for BLUE MODE identified him among the members who contributed lyrics to the second mini-album.
The release represented another stage in the group’s development as its members became more involved in shaping their music.
Sihwan’s birthday is November 28, 2005. Because his birthday falls later in the year, he is 20 as of October 27, 2026, and will turn 21 in November.
7. Arctic (아틱)
Birthday: October 9, 2008
Age: 18
Agency: IST Entertainment
Group: TUNEXX
Arctic is the youngest member of TUNEXX based on the birthdays published by IST Entertainment.
He was born on October 9, 2008, and turned 18 in October 2026. Before the group’s debut, he appeared on Mnet’s BOYS II PLANET, which also featured Donggyu, Inhu and Sihwan.
Arctic became part of TUNEXX’s final lineup and made his official debut with the other six members in March 2026.
His participation in the survival program gave audiences an opportunity to encounter him before the group began its official music career.
IST Entertainment’s profile confirms his stage name and birthday. Additional personal details should be included only when supported by reliable public sources.
TUNEXX Members’ Ages and Birthdays in 2026
The following table uses the birthdays listed on IST Entertainment’s official artist profile. Ages are calculated as of October 27, 2026, using international age.
| Member | Birthday | Age on October 27, 2026 |
|---|---|---|
| Inhu | January 22, 2005 | 21 |
| Donggyu | March 16, 2005 | 21 |
| Taira | April 3, 2005 | 21 |
| Sungjun | July 18, 2005 | 21 |
| Zeon | July 20, 2005 | 21 |
| Sihwan | November 28, 2005 | 20 |
| Arctic | October 9, 2008 | 18 |
The youngest member is Arctic. Inhu is the oldest member by birth date, followed by Donggyu.
These are international ages, not the traditional Korean age-counting system.
When Did TUNEXX Debut?
TUNEXX officially debuted on March 3, 2026, under IST Entertainment with its first mini-album, SET BY US ONLY. The release included four tracks: “100%,” “Proof That I Am Alive,” “Obsessed” and “Twenty Something.”
The title track, also known in English-language coverage as “I’m Alive,” introduced the group’s electronic hip-hop sound. The members’ different vocal and rap styles formed part of the track’s musical approach.
Before the official debut, the group released “One Last Chance,” which appeared as Part 1 of the original soundtrack for the SBS drama No Tail to Tell. The track provided an early introduction to TUNEXX as a complete seven-member group.
The debut followed the announcement of the group’s name and lineup in January 2026.
What Does the Name TUNEXX Mean?
The official group name combines two elements: “TUNE” and “X.”
According to the group’s official website, “TUNE” is its signature keyword, while “X” carries the meanings of “Unclassified” and “Cross.” Together, these elements express the idea of crossing boundaries and exploring new possibilities.
The concept also connects to the group’s slogan, “TUNE IN TO OUR FREQUENCY.”
Rather than presenting the members as identical performers, the group’s official description emphasizes how their different personalities and abilities can work together through music and performance.
TUNEXX Discography: Albums and Songs
TUNEXX released two mini-albums during its first year as a group.
SET BY US ONLY – March 3, 2026
SET BY US ONLY was TUNEXX’s debut mini-album. Its four-track lineup introduced the group through a mix of electronic hip-hop, rap and melodic elements.
| Track | Details |
|---|---|
| 100% | Album track |
| Proof That I Am Alive | Title track, also referred to as “I’m Alive” in English-language coverage |
| Obsessed | Album track |
| Twenty Something | Album track |
The debut established the group’s early musical identity and introduced its seven members to listeners.
BLUE MODE – September 2, 2026
TUNEXX released its second mini-album, BLUE MODE, on September 2, 2026. IST Entertainment described it as a release centered on the connections among the seven members and their development as a team.
The four-track album includes:
| Track | Details |
|---|---|
| BLUE MODE | Title track |
| SYNC UP | B-side |
| ANSWER | B-side |
| OVER X | B-side |
The title track takes a hip-hop-oriented approach, while the album explores additional sounds, including UK garage house and R&B-influenced elements.
Five members-Donggyu, Inhu, Taira, Zeon and Sihwan-participated in lyric writing for the album, according to IST Entertainment’s release announcement.
The creative contributions were also discussed in the Korea Herald’s September 2026 interview with the group.
TUNEXX’s Appearance on BOYS II PLANET
Four members of TUNEXX-Donggyu, Inhu, Sihwan and Arctic-appeared on Mnet’s survival audition program BOYS II PLANET in 2025.
The program gave the trainees an opportunity to perform before a television audience and compete for a place in its debut lineup.
Donggyu later discussed how the experience helped him examine his performance skills and recognize areas for improvement. Other members also described learning from the experiences of the trainees who participated.
Although the four members did not all enter TUNEXX through the same career path, their previous television appearances became part of the group’s pre-debut story.
TUNEXX Fandom Name
TUNEXX’s fandom name is TUEWIN, as referenced in the Korea Herald’s September 2026 interview.
The name appears in the context of the group’s relationship with its fans and its broader “frequency” concept. In the interview, leader Donggyu discussed the idea of TUNEXX and TUEWIN continuing to tune into one another.
For the latest official fandom announcements and fan-platform activities, readers should check the group’s official channels.
TUNEXX Awards and Achievements
TUNEXX’s documented milestones during 2026 include its official debut, two mini-album releases and the members’ increased involvement in songwriting.
These developments are relevant to the group’s early career, but they should not be confused with award wins or specific chart achievements.
| Year | Milestone | Details |
|---|---|---|
| 2026 | Pre-debut OST | Released “One Last Chance” for No Tail to Tell |
| 2026 | Official debut | Released SET BY US ONLY on March 3 |
| 2026 | First comeback | Released BLUE MODE on September 2 |
| 2026 | Songwriting contributions | Five members participated in lyric writing for BLUE MODE |
This table lists career milestones rather than competitive awards. An award or chart position should be added only after it has been verified through the relevant award organization, broadcaster or music chart.
TUNEXX Official Website and Social Media
For reliable updates about the group, use its official website and the channels linked by IST Entertainment.
- Official website: https://www.tunexx.co.kr/
- IST Entertainment artist profile: https://istent.co.kr/artist/tunexx
The official artist profile provides the group’s member list, birthdays, album information and selected videos.
Readers should verify social-media handles through the agency’s official website before treating an account as an official TUNEXX channel.
TUNEXX Lifestyle: What Is Publicly Known?
TUNEXX’s official profiles and entertainment coverage provide information about the members’ professional activities. They do not establish a complete personal lifestyle profile for every member.
The following details should not be presented as facts without additional reliable evidence:
- Diet and workout routines: No complete, verified routine for each member is established by the sources used for this article.
- Skincare products: No complete skincare routine is established by the sources used here.
- Cars and watches: No verified individual ownership list is established by the sources used here.
- Homes and addresses: Private residential information should not be published without a clear, appropriate public-interest basis.
- Dating and relationships: Rumors or fan speculation should not be treated as confirmation.
- Individual net worth: The members’ exact personal net worth figures are not established by the sources used for this article.
These subjects can be updated if the members or their agency provide reliable public information.
Frequently Asked Questions About TUNEXX
1. Who are the members of TUNEXX?
TUNEXX has seven members: Donggyu, Inhu, Taira, Sungjun, Zeon, Sihwan and Arctic.
2. When did TUNEXX debut?
TUNEXX officially debuted on March 3, 2026, under IST Entertainment with the mini-album SET BY US ONLY.
3. How many members does TUNEXX have?
TUNEXX is a seven-member boy group.
4. Who is the youngest member of TUNEXX?
Arctic is the youngest member. His birthday is October 9, 2008.
5. Who is the oldest member of TUNEXX?
Inhu is the oldest member by birth date. He was born on January 22, 2005.
6. Who is the leader of TUNEXX?
Donggyu is the group’s leader, as identified in Korean entertainment reporting.
7. Which company manages TUNEXX?
TUNEXX is managed by IST Entertainment.
8. What is TUNEXX’s fandom name?
The fandom name is TUEWIN, as referenced in the Korea Herald’s September 2026 interview with the group.
9. What is TUNEXX’s debut song?
The debut title track is “Proof That I Am Alive,” also referred to as “I’m Alive” in English-language coverage.
10. What is TUNEXX’s latest mini-album?
As of October 27, 2026, the latest mini-album documented in the sources used here is BLUE MODE, released on September 2, 2026.
11. Which TUNEXX members appeared on BOYS II PLANET?
Donggyu, Inhu, Sihwan and Arctic appeared on Mnet’s BOYS II PLANET in 2025.
12. How old are the TUNEXX members in 2026?
As of October 27, 2026, Inhu, Donggyu, Taira, Sungjun and Zeon are 21. Sihwan is 20, while Arctic is 18.
13. What is the meaning of TUNEXX?
The name combines “TUNE” with “X,” which represents “Unclassified” and “Cross.” The concept reflects the group’s stated aim of exploring possibilities beyond fixed boundaries.
14. How many songs are on BLUE MODE?
The second mini-album contains four tracks: “BLUE MODE,” “SYNC UP,” “ANSWER” and “OVER X.”
15. Have TUNEXX members participated in songwriting?
Yes. IST Entertainment reported that Donggyu, Inhu, Taira, Zeon and Sihwan participated in lyric writing for BLUE MODE.
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