ICHILLIN’ J Members Profile 2026: Bio, Age, Career & Interesting Facts
The K-pop industry is no stranger to exciting sub-units, and 2026 has brought us one of the most anticipated ones yet-ICHILLIN’ J (아이칠린 J). As the first-ever sub-unit from the popular girl group ICHILLIN’, this trio is set to make waves with a fresh concept, new music, and a different side of the members fans have come to love.
ICHILLIN’ J is the first sub-unit of the South Korean girl group ICHILLIN’, formed under KM Entertainment. The unit consists of three members: E.Ji (leader, main dancer), Joonie (lead vocalist), and Yeju (lead dancer, center). They are set to debut on September 2, 2026, with the digital single “Look At Me!“
ICHILLIN‘ J is the first sub-unit of the South Korean girl group ICHILLIN’, formed under KM Entertainment. The unit consists of three members: E.Ji (leader, main dancer), Joonie (lead vocalist), and Yeju (lead dancer, center). They are set to debut on September 2, 2026, with the digital single “Look At Me!“
ICHILLIN‘ J consists of three members from the main group: E.Ji (the leader), Joonie, and Yeju. This unit marks a significant milestone for ICHILLIN‘, which debuted in 2021 and has since built a solid discography and dedicated fanbase. The sub-unit’s formation allows these three members to showcase their individual talents and explore a musical direction distinct from the group’s main activities.
The group is set to debut on September 2, 2026, with their first digital single, “Look At Me!“. The announcement was made through KM Entertainment’s official social media channels, and the teaser schedule, featuring a pink Barbie-doll-inspired concept, has already generated significant buzz.
In this comprehensive ICHILLIN’ J members profile, we will explore everything you need to know about this exciting new unit-from the individual backgrounds, ages, and roles of each member, to their career journeys, net worth, and fun facts that will make you fall in love with them all over again.
Quick Facts Table
Table of Contents
Who Is ICHILLIN’ J?
ICHILLIN’ J (아이칠린 J) is the first official sub-unit of the South Korean girl group ICHILLIN’, formed under KM Entertainment. The unit was announced in August 2026, marking a new chapter for the group that debuted in September 2021.
The “J” in ICHILLIN’ J stands for the three members who make up the unit: E.Ji, Joonie, and Yeju. This sub-unit allows these members to explore a different musical concept and showcase their individual charms separate from the full group activities.
ICHILLIN’ J’s debut single, “Look At Me!“, is scheduled for release on September 2, 2026, at 6 PM KST. The teaser concept features a pink, Barbie-doll-inspired aesthetic with various fashion items like lace cardigans, denim sets, dresses, miniskirts, and long boots, creating a kitsch yet adorable atmosphere.
The formation of ICHILLIN’ J is significant as it is the group’s first sub-unit since their debut. Fans are eagerly anticipating the new combination of members, music, and concept that will differentiate this unit from ICHILLIN’s main activities.
Group History
Formation and Pre-Debut
ICHILLIN’ as a whole was formed by KM Entertainment and debuted on September 8, 2021, with the digital single “Got’Ya”. The group originally consisted of seven members: E.Ji, Jackie, Joonie, Chaerin, Sohee, Yeju, and Chowon.
The group name ICHILLIN’ is a compound of the words “Aisling,” which means dream and vision, and “Chillin’,” which means relaxing or coolness. This combination represents the hope that their music will encourage listeners to dream and relax. The name also features bilingual wordplay- the “I” means “I” as in me, and “CHILLIN'” references the Korean word for seven (칠 – chil), representing the seven members who came together to form the group.
Sohee left the group in July 2022 after discussions with the agency. Later that year, on October 25, Jiyoon– who was a contestant on Girls Planet 999– joined the group. This stabilized the lineup to the current seven members: Jiyoon, E.Ji, Jackie, Joonie, Chaerin, Yeju, and Chowon.
Official Debut (ICHILLIN’)
ICHILLIN’ was originally set to debut on August 25, 2021, but the debut was delayed to allow for more completeness in the group through improvements on the album. They eventually made their debut with their first digital single “Got’Ya” on September 8, 2021. The group had their first comeback on November 11, 2021, with their second digital single “Fresh“.
Breakthrough Success
In 2022, ICHILLIN’ released their first extended play (EP) Bridge of Dreams on April 27, with “Play Hide & Seek” serving as the lead single. The EP also featured their previous digital singles “Got’Ya” and “Fresh”. They followed up with promotions for “Play Hide & Seek” and the EP track “La Luna”.
The group continued to release music steadily, building a discography that includes multiple digital singles and EPs such as I’M ON IT!, Feelin’ Hot, and WILD CHERRY.
Recent Activities and ICHILLIN’ J Formation
In August 2026, KM Entertainment announced the formation of ICHILLIN’ J, the group’s first sub-unit. The unit consists of E.Ji, Joonie, and Yeju.
The announcement came with a teaser schedule for their debut single “Look At Me!“. The teaser concept features a pink, Barbie-doll-inspired aesthetic, with various fashion items creating a kitsch and adorable vibe. The teaser content rollout includes concept photos, a visualizer teaser, a track list, and a music video teaser.
The members of ICHILLIN’ J have not been officially revealed in individual teasers yet, which has generated significant curiosity among fans. The unit’s debut is expected to showcase a combination and concept different from ICHILLIN’s main activities.
Agency and Management
ICHILLIN’ and its sub-unit ICHILLIN’ J are managed by KM Entertainment (케이엠이엔티).
KM Entertainment is a South Korean entertainment company that launched ICHILLIN’ in 2021. The company has been introducing the members since before the group’s debut, revealing profile pictures and information through official social media channels.
The agency is responsible for the group’s music production, promotions, and overall management. KM Entertainment has supported ICHILLIN’ through multiple comebacks, EP releases, and now the formation of their first sub-unit.
Information about specific contract terms or management history beyond the group’s activities is not publicly available.
Member Profiles
E.Ji (이지) Profile
Personal Information
Group Role
| Category | Details |
|---|---|
| Position(s) | Leader, Main Dancer, Sub-Vocalist |
| Training Period | This information is not publicly available. |
Early Life and Education
E.Ji was born Choi Ji-won (최지원) on November 8, 2000, in Bupyeong-gu, Incheon, South Korea. She grew up in Incheon and attended Myeongsin Girls’ High School.
From a young age, E.Ji showed a passion for dance. She has been a dancer since she was young, majoring in modern dance. During her high school years, she was a part of the student council, demonstrating leadership qualities that would later serve her well as the group’s leader.
Career Journey
Pre-Debut Activities
Before debuting with ICHILLIN’, E.Ji was a trainee under Fantagio Music. She trained alongside other future ICHILLIN’ members including Sohee, Yeju, and Chowon.
Debut and Group Activities
E.Ji was the first member of ICHILLIN’ to be revealed by KM Entertainment. She debuted as a member of ICHILLIN’ on September 8, 2021, with the digital single “Got’Ya”.
As the leader of ICHILLIN’, E.Ji has been instrumental in guiding the group through their career. She also serves as the Main Dancer and a Sub-Vocalist.
ICHILLIN’ J Activities
In August 2026, E.Ji was announced as a member of ICHILLIN’ J, the group’s first sub-unit. She is set to debut with the unit on September 2, 2026, with the digital single “Look At Me!”.
Family Background
E.Ji’s family background is not publicly available. She has been known to keep her personal life private. Some sources indicate she has a family with parents and an older brother, but this information is not officially confirmed.
Relationship Status
As of 2026, E.Ji’s relationship status is not publicly available. Like most K-pop idols, she is focused on her career and has not publicly disclosed any romantic relationships.
Net Worth
E.Ji’s individual net worth is not publicly available. As a member of ICHILLIN’ and now ICHILLIN’ J, her income comes from album sales, streaming, performances, and merchandise. As a leader of an active group, she likely has a stable income, but specific figures have not been disclosed.
Social Media Profiles
| Platform | Handle |
|---|---|
| @ejp_z |
Interesting Facts About E.Ji
- E.Ji was the first member of ICHILLIN’ to be revealed to the public.
- Her favorite color is white.
- She was a Fantagio trainee before joining KM Entertainment.
- She was a member of the student council during high school.
- She has been a dancer since she was young, majoring in modern dance.
- She is the oldest member of ICHILLIN’ and ICHILLIN’ J.
- Her blood type is A and her MBTI is ISFJ.
- She was born in Bupyeong-gu, Incheon.
Joonie (주니) Profile
Personal Information
Group Role
| Category | Details |
|---|---|
| Position(s) | Lead Vocalist, Sub-Rapper |
| Training Period | This information is not publicly available. |
Early Life and Education
Joonie was born Park Joon-hee (박준희) on May 24, 2002, in Los Angeles, California, United States. She is a Korean-American artist, having grown up in the United States.
She attended Crescenta Valley High School in California. Her American upbringing has contributed to her fluency in English and her ability to connect with international fans.
Career Journey
Pre-Debut Activities
Joonie was revealed as a member of ICHILLIN’ on August 4, 2021, by KM Entertainment. She was one of the members introduced before the group’s official debut.
Debut and Group Activities
Joonie debuted as a member of ICHILLIN’ on September 8, 2021, with the digital single “Got’Ya”. In the group, she serves as a Lead Vocalist and Sub-Rapper.
According to member Joonie herself, the group name ICHILLIN’ is a combination of the words AISLING (dream and vision) and CHILLIN (resting and style).
ICHILLIN’ J Activities
In August 2026, Joonie was announced as a member of ICHILLIN’ J. She is set to debut with the unit on September 2, 2026, with the digital single “Look At Me!”.
Family Background
Joonie’s family background is not publicly available. She was born in Los Angeles and is of Korean descent, but specific details about her family have not been disclosed.
Relationship Status
As of 2026, Joonie’s relationship status is not publicly available. She is focused on her career and has not publicly disclosed any romantic relationships.
Net Worth
Joonie’s individual net worth is not publicly available. As a member of ICHILLIN’ and ICHILLIN’ J, her income comes from album sales, streaming, performances, and merchandise.
Social Media Profiles
| Platform | Handle |
|---|---|
| @krapeinooj |
Interesting Facts About Joonie
- Joonie was born in Los Angeles, California, making her a Korean-American artist.
- She was revealed as a member of ICHILLIN’ on August 4, 2021.
- She attended Crescenta Valley High School.
- Her hobbies include drawing, taking pictures, cooking, and listening to music.
- Her MBTI type is ENFP/ENFJ.
- Her blood type is A.
- She is a Lead Vocalist and Sub-Rapper in ICHILLIN’.
- She explained the meaning of the group name ICHILLIN’ in an interview.
Yeju (예주) Profile
Personal Information
Group Role
| Category | Details |
|---|---|
| Position(s) | Lead Dancer, Sub-Vocalist, Center |
| Training Period | This information is not publicly available. |
Early Life and Education
Yeju was born Kim Ye-ju (김예주) on September 1, 2004, in Wonju, Gangwon, South Korea. She grew up in Wonju and developed a passion for performing from a young age.
Details about her education are not publicly available.
Career Journey
Pre-Debut Activities
Before debuting with ICHILLIN’, Yeju was a trainee under Fantagio Music, alongside E.Ji, Sohee, and Chowon. She was the latest member to be revealed by KM Entertainment before the group’s debut.
Debut and Group Activities
Yeju debuted as a member of ICHILLIN’ on September 8, 2021, with the digital single “Got’Ya”. In the group, she serves as the Lead Dancer, Sub-Vocalist, and Center.
ICHILLIN’ J Activities
In August 2026, Yeju was announced as a member of ICHILLIN’ J. She is set to debut with the unit on September 2, 2026, with the digital single “Look At Me!”.
Family Background
Yeju’s family background is not publicly available.
Relationship Status
As of 2026, Yeju’s relationship status is not publicly available. She is focused on her career and has not publicly disclosed any romantic relationships.
Net Worth
Yeju’s individual net worth is not publicly available. As a member of ICHILLIN’ and ICHILLIN’ J, her income comes from album sales, streaming, performances, and merchandise.
Social Media Profiles
| Platform | Handle |
|---|---|
| @welcometoyezoo |
Interesting Facts About Yeju
- Yeju was the latest member to be revealed before ICHILLIN’s debut.
- She was born in Wonju, Gangwon, South Korea.
- She was a trainee under Fantagio Music before joining KM Entertainment.
- Her MBTI type is ENFP.
- Her blood type is A.
- She is the Center of ICHILLIN’.
- She is a Lead Dancer and Sub-Vocalist.
- She is the second youngest member of ICHILLIN’, born just before Chowon.
Discography
ICHILLIN’ J
ICHILLIN’ (Parent Group)
Digital Singles
Mini-Albums (EPs)
Notable Songs
- “Got’Ya” (Debut single)
- “Fresh”
- “Play Hide & Seek” (Lead single from Bridge of Dreams)
- “La Luna” (Promoted track from Bridge of Dreams)
Music Style and Influence
ICHILLIN’ has established a musical identity that blends energetic pop with catchy hooks and dynamic performances. Their debut single “Got’Ya” introduced them as a group with a fresh, youthful sound.
The group’s music has evolved through their discography, with EPs like Bridge of Dreams showcasing a more mature and diverse sound. Their ability to experiment with different concepts while maintaining their signature style has been a key factor in their growth.
With the formation of ICHILLIN’ J, the sub-unit is expected to explore a concept distinct from the main group’s activities. The teaser concept for “Look At Me!” features a pink, Barbie-doll-inspired aesthetic, suggesting a kitsch, adorable, and perhaps more feminine or playful direction.
Awards and Achievements
| Category | Details |
|---|---|
| Debut | September 8, 2021, with “Got’Ya” |
| First EP | Bridge of Dreams (April 27, 2022) |
| First Sub-Unit | ICHILLIN’ J (September 2, 2026) |
| Fandom Name | Willing (announced December 10, 2021) |
Specific awards and music show wins for ICHILLIN’ are not detailed in publicly available sources. As a group that debuted in 2021, they have built a steady career with multiple releases.
Tours and Concerts
Information about specific tours and concerts for ICHILLIN’ is not publicly available. The group has performed at various events and showcases since their debut, but detailed tour information has not been disclosed.
Brand Endorsements and Ambassadorships
Information about specific brand endorsements and ambassadorships for ICHILLIN’ or ICHILLIN’ J is not publicly available.
Social Media Presence
| Platform | Handle |
|---|---|
| Official Twitter | @ichillin_km |
| Official Instagram | ICHILLIN’ official account |
| Official TikTok | ICHILLIN’ official account |
| Official YouTube | ICHILLIN’ official account |
| Official Website | https://kment.kr |
Net Worth and Revenue Sources
As a sub-unit that has not yet debuted as of August 2026, ICHILLIN’ J’s net worth is not applicable or publicly available.
For the parent group ICHILLIN’, individual member net worth is not publicly available. Their income sources include:
- Album Sales – Revenue from digital and physical album sales
- Music Streaming – Revenue from platforms like Spotify, Apple Music, Melon, etc.
- Live Performances – Concerts, showcases, and festival appearances
- Merchandise – Official group merchandise sales
- Variety Show Appearances – Guest appearances on television programs
As a newly formed sub-unit, ICHILLIN’ J’s revenue will come from similar sources once they debut.
20 Interesting Facts About ICHILLIN’ J
- ICHILLIN’ J is the first sub-unit from the girl group ICHILLIN’ since their debut in 2021.
- The “J” in ICHILLIN’ J stands for the three members: E.Ji, Joonie, and Yeju.
- They are set to debut on September 2, 2026, with the digital single “Look At Me!“.
- The teaser concept features a pink, Barbie-doll-inspired aesthetic.
- E.Ji is the leader of both ICHILLIN’ and ICHILLIN’ J.
- E.Ji was the first member of ICHILLIN’ to be revealed to the public.
- E.Ji was a Fantagio trainee before joining KM Entertainment.
- Joonie was born in Los Angeles, California, making her a Korean-American artist.
- Joonie explained the meaning of the group name ICHILLIN’ in an interview.
- Yeju was the latest member to be revealed before ICHILLIN’s debut.
- Yeju was also a Fantagio trainee alongside E.Ji.
- ICHILLIN’ J’s debut single “Look At Me!” is scheduled for release at 6 PM KST.
- The teaser schedule includes concept photos, a visualizer teaser, a track list, and a music video teaser.
- The members of ICHILLIN’ J were not immediately revealed to the public, generating curiosity.
- ICHILLIN’ J is expected to showcase a different combination and concept from the main group.
- E.Ji is the oldest member of ICHILLIN’ J, born on November 8, 2000.
- Yeju is the youngest member of ICHILLIN’ J, born on September 1, 2004.
- All three members have blood type A.
- E.Ji and Yeju both have the MBTI type ENFP, while Joonie has ENFP/ENFJ.
- ICHILLIN’ J’s debut comes five years after ICHILLIN’s debut in 2021.
Frequently Asked Questions (FAQ)
1. What is ICHILLIN’ J?
ICHILLIN’ J is the first sub-unit of the South Korean girl group ICHILLIN’, consisting of members E.Ji, Joonie, and Yeju.
2. When does ICHILLIN’ J debut?
ICHILLIN’ J is set to debut on September 2, 2026.
3. What is ICHILLIN’ J’s debut song?
Their debut digital single is titled “Look At Me!“.
4. Who are the members of ICHILLIN’ J?
The members are E.Ji (leader), Joonie, and Yeju.
5. What does the “J” in ICHILLIN’ J stand for?
The “J” represents the three members: E.Ji, Joonie, and Yeju.
6. What agency manages ICHILLIN’ J?
ICHILLIN’ J is managed by KM Entertainment.
7. Who is the leader of ICHILLIN’ J?
E.Ji is the leader of both ICHILLIN’ and ICHILLIN’ J.
8. Who is the oldest member of ICHILLIN’ J?
E.Ji (born November 8, 2000) is the oldest member.
9. Who is the youngest member of ICHILLIN’ J?
Yeju (born September 1, 2004) is the youngest member.
10. What is the fandom name for ICHILLIN’?
The fandom name is Willing (윌링).
11. When did ICHILLIN’ debut?
ICHILLIN’ debuted on September 8, 2021.
12. What was ICHILLIN’s debut song?
Their debut digital single was “Got’Ya“.
13. How many members does ICHILLIN’ have?
ICHILLIN’ has seven members: Jiyoon, E.Ji, Jackie, Joonie, Chaerin, Yeju, and Chowon.
14. What is the meaning of the group name ICHILLIN’?
The name combines “Aisling” (dream and vision) and “Chillin'” (relaxing and style).
15. What are the positions of E.Ji in ICHILLIN’?
E.Ji is the Leader, Main Dancer, and Sub-Vocalist.
16. What are the positions of Joonie in ICHILLIN’?
Joonie is the Lead Vocalist and Sub-Rapper.
17. What are the positions of Yeju in ICHILLIN’?
Yeju is the Lead Dancer, Sub-Vocalist, and Center.
18. Where was Joonie born?
Joonie was born in Los Angeles, California, United States.
19. Where was Yeju born?
Yeju was born in Wonju, Gangwon, South Korea.
20. What is ICHILLIN’ J’s concept?
The teaser concept features a pink, Barbie-doll-inspired aesthetic, suggesting a kitsch and adorable vibe.
Conclusion
ICHILLIN’ J represents an exciting new chapter for the ICHILLIN’ franchise. As the group’s first sub-unit, it showcases three talented members-E.Ji, Joonie, and Yeju-in a fresh configuration that allows them to shine individually while maintaining the group’s signature charm.
The unit’s upcoming debut on September 2, 2026, with the digital single “Look At Me!” is highly anticipated by fans worldwide. The teaser concept, with its pink Barbie-doll-inspired aesthetic, promises a fun and adorable concept that will differentiate ICHILLIN’ J from the main group’s activities.
Each member brings unique strengths to the unit: E.Ji as the experienced leader and main dancer, Joonie as the Korean-American lead vocalist with international appeal, and Yeju as the charismatic center and lead dancer. Together, they form a dynamic trio poised to make a significant impact in the K-pop landscape.
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