BLUF: Yoonchae Jeong (μ μ€μ±) is an 18-year-old South Korean singer and the youngest (maknae) member of global girl group KATSEYE β a Grammy-nominated act formed by HYBE and Geffen Records β who placed 4th on The Debut: Dream Academy in 2023 before debuting on June 28, 2024.
She is one of the most searched K-pop figures of 2026. Trained from age 12, she rose from Seoul trainee to Grammy ceremony performer in under three years. Here is everything verified about her life, height, net worth, and career as of May 2026.
Quick Facts at a Glance
| Detail | Information |
| Full Name | Jeong Yoonchae (μ μ€μ±) |
| Stage Name | Yoonchae |
| Date of Birth | December 6, 2007 |
| Age (2026) | 18 years old |
| Birthplace | Sinjeong-dong, Yangcheon-gu, Seoul, South Korea |
| Height | 170 cm (5 ft 7 in) |
| Zodiac Sign | Sagittarius |
| MBTI | ESTP |
| Nationality | South Korean |
| Group | KATSEYE |
| Label | HYBE / Geffen Records |
| Debut Date | June 28, 2024 |
| Position | Vocalist, Dancer, Maknae |
| Net Worth (est.) | $200,000β$500,000 USD |
| Languages | Korean, English |
| Nicknames | Marshmallow (λ§μλ©λ‘μ°), Bruni (λΈλ£¨λ), Cube (μ μ‘면체) |
| Role Models | BTS, BLACKPINK, IU |
Who Is Yoonchae Jeong?
Yoonchae Jeong is the youngest member of KATSEYE, a six-member multinational K-pop group created by HYBE and Geffen Records. She is the only Korean member in the group. As of 2026, she is also one of the youngest Korean artists ever nominated for a Grammy Award.
She grew up in Seoul and began idol training at age 12. Her calm, composed stage presence and sharp choreography quickly distinguished her from other trainees. Fans and industry observers often describe her as the "grounding energy" of KATSEYE's lineup.
If you are curious about rising stars in the K-pop world, you might also enjoy reading about Samantha Richelle and other next-generation talents on BigWriteHook.
Early Life and Family Background
Yoonchae was born on December 6, 2007, in the Sinjeong-dong neighbourhood of Yangcheon-gu, Seoul. She was raised in a close-knit family that includes her parents and an older sister named Jung Yun-seo, who introduced her to makeup and beauty β a shared hobby that still features in Yoonchae's public persona today.
- She attended Seoul Jihyang Elementary School and Geumok Middle School
- She later enrolled at Baekam High School before leaving to focus on her music career
- She decided not to take the 2026 CSAT (College Scholastic Ability Test), a clear sign of her full commitment to KATSEYE
- Growing up, she was deeply inspired by BTS, BLACKPINK, and IU
She has spoken publicly about reading letters from her family when she feels stressed. That emotional anchor β family support over performance pressure β is a detail her fans find deeply relatable.
Training Journey: From Seoul Trainee to Global Stage
Yoonchae's path to KATSEYE was methodical and early.
| Year | Milestone |
| 2020 | Auditioned for and joined CJ E&M / WakeOne Entertainment as a trainee at age 12 |
| 2020β2022 | Trained for approximately two years at WakeOne |
| 2022β2023 | Moved to HYBE as a trainee |
| August 2023 | Announced as one of 20 finalists for The Debut: Dream Academy |
| November 18, 2023 | Placed 4th in the show's finale, securing her debut spot |
| June 28, 2024 | Officially debuted with KATSEYE |
She trained alongside Choi Jungeun (now of girl group IZNA) during her WakeOne days β a small detail that helps fans map her early journey within the Korean idol industry.
Her standout performance of LE SSERAFIM's "Antifragile" during Dream Academy drew significant attention and underlined her confidence as a performer even before debut.
KATSEYE: Group Profile and Yoonchae's Role
KATSEYE was formed through one of the most watched global idol survival projects in recent memory. Out of over 120,000 applicants, six members were selected: Sophia, Daniela, Megan, Manon, Lara, and Yoonchae.
- The group debuted on June 28, 2024, with the EP SIS (Soft Is Strong)
- Their debut single "Debut" was released the same day
- A Netflix documentary, Pop Star Academy: KATSEYE, documented the group's formation and early training
- Yoonchae serves as the group's maknae (youngest member) and sole Korean member
- Her representative charm symbol is the Soothing Shell β reflecting her calm, comforting presence within the group
She and fellow member Sophia Laforteza are roommates. That detail speaks to how closely bonded the group has become, especially given how differently they each grew up.
Career Highlights: 2024β2026
Debut Era (2024)
- Released debut EP SIS (Soft Is Strong) on June 28, 2024
- The EP included standout track "Touch," which became a fan favourite
- The Netflix documentary helped introduce KATSEYE to global audiences beyond the K-pop fanbase
Beautiful Chaos Era (2025)
- Released second album Beautiful Chaos in 2025
- The viral single "Gnarly" took social media by storm, generating millions of short-form video views
- Follow-up single "Gabriela" peaked at No. 37 on the Billboard Hot 100 and spent 11 weeks on the chart β KATSEYE's first Hot 100 entry
- Beautiful Chaos debuted at No. 4 on the Billboard 200, their highest-charting album to date
- The group performed at MTV VMAs and Lollapalooza in 2025
Grammy Nomination (Late 2025 β 2026)
- In November 2025, KATSEYE received two Grammy nominations at the 68th Grammy Awards:
- Best New Artist
- Best Pop Duo/Group Performance (for "Gabriela")
- This made Yoonchae the youngest Korean artist ever nominated for a Grammy Award
- The group performed at the 2026 Grammy Awards ceremony in a special Best New Artist segment
- In early 2026, KATSEYE released "Internet Girl", continuing their momentum
For more on artists navigating global fame and milestone achievements, see BigWriteHook's profile on Henry Samuel β another young figure building an identity in the public eye.
Yoonchae Jeong's Height, Physical Profile
- Height: 170 cm (5 ft 7 in)
- She is confirmed as the tallest member of KATSEYE, a detail verified by groupmates on Weverse in April 2025
- Her height and precise stage movements give her a striking visual presence in group performances
- She describes herself as "innocent, cute, and sexy" β a combination her fans enthusiastically agree with
Yoonchae Jeong Net Worth (2026 Estimate)
Yoonchae's individual net worth is not publicly disclosed. Estimates from multiple entertainment finance sources range between $200,000 and $500,000 USD as of 2026.
Her income streams include:
- Music royalties from KATSEYE's releases on Spotify, Apple Music, and YouTube
- Touring revenue from North American and Asian showcase tours (2025β2026)
- Brand partnerships and cosmetic/fashion endorsements
- Merchandise sales through KATSEYE's official fan channels
It is worth noting that KATSEYE is still in early growth phase. Industry observers expect individual net worth figures to rise significantly by 2027β2028 as the group's commercial footprint expands.
Personal Life: Relationships, Interests, and Personality
Yoonchae is not in a publicly confirmed relationship as of May 2026. Like most HYBE-affiliated artists, she keeps her personal life private.
What we do know:
- She has a pet cat
- She enjoys K-dramas and mukbangs in her downtime
- She relies on letters from family and friends as her primary emotional support during stressful schedules
- She is a self-described fan of NEWJEANS's Haerin and has cited BLACKPINK's Jennie Kim as a personal role model
- She wishes to visit Hawaii someday
- She is currently learning English and has become increasingly fluent through daily interactions with her international groupmates
Her MBTI type is ESTP β meaning she's energetic, perceptive, and action-oriented. That tracks with the boldness she shows on stage.
For another example of someone whose public image and private life are navigated with equal discipline, see BigWriteHook's profile of Grant Goodeve.
Frequently Asked Questions
Q: How old is Yoonchae Jeong in 2026?
A: Yoonchae Jeong is 18 years old in 2026. She was born on December 6, 2007, in Seoul, South Korea, which makes her a Sagittarius. She is the youngest member of KATSEYE and one of the youngest Korean artists nominated for a Grammy Award.
Q: What is Yoonchae Jeong's height?
A: Yoonchae stands at 170 cm (5 ft 7 in). She is the tallest member of KATSEYE, confirmed by group members in an April 2025 Weverse post. Her height enhances her stage presence and contributes to her distinct visual identity in the group.
Q: What group is Yoonchae Jeong in?
A: Yoonchae is a member of KATSEYE, a global girl group formed by HYBE and Geffen Records. The group debuted on June 28, 2024. Yoonchae is the only Korean member and the youngest (maknae) of the six-member lineup.
Q: Did Yoonchae Jeong get a Grammy nomination?
A: Yes. As part of KATSEYE, Yoonchae received Grammy nominations at the 68th Grammy Awards (2026) for Best New Artist and Best Pop Duo/Group Performance for "Gabriela." This made her the youngest Korean artist ever nominated for a Grammy. The group also performed at the ceremony.
Q: What is Yoonchae Jeong's net worth?
A: Yoonchae's net worth is estimated between $200,000 and $500,000 USD as of 2026. Her income comes from KATSEYE's music releases, touring, brand partnerships, and merchandise. Because KATSEYE debuted in 2024, individual earnings are still in an early growth phase.
Q: Does Yoonchae Jeong have a boyfriend?
A: No confirmed relationship has been reported as of 2026. Yoonchae is focused on her career with KATSEYE. Like most HYBE-affiliated artists, she maintains privacy around her personal life, and no credible media source has reported a confirmed romantic partner.
Q: Where is Yoonchae from and where does she live now?
A: Yoonchae was born in Sinjeong-dong, Yangcheon-gu, Seoul, South Korea. She now lives in Los Angeles, California, where KATSEYE is based for training and international activities. She has said Los Angeles holds special meaning for her as the place where the group formed their bond.
Q: What was Yoonchae's rank on Dream Academy?
A: Yoonchae placed 4th in the finale of The Debut: Dream Academy, which aired on November 18, 2023. That result secured her a spot in KATSEYE. Her performance of LE SSERAFIM's "Antifragile" during the show was among her most celebrated moments as a contestant.
Q: What languages does Yoonchae Jeong speak?
A: Yoonchae is fluent in Korean and has been actively learning English since joining KATSEYE. Her groupmates and daily life in Los Angeles have accelerated her English skills significantly. She now communicates comfortably in both languages during interviews and fan interactions.
Q: Is Yoonchae Jeong featured in a Netflix show?
A: Yes. Yoonchae appears in Pop Star Academy: KATSEYE, a Netflix documentary that followed the formation of the group after The Debut: Dream Academy. The series offered global
References
- Simple English Wikipedia β Yoonchae Jeung: https://simple.wikipedia.org/wiki/Yoonchae_Jeung
- Kpop Profiles β Yoonchae (KATSEYE): https://kprofiles.com/yoonchae-katseye-profile-and-facts/
- Billboard β Dream Academy Finalists: https://www.billboard.com/music/pop/dream-academy-finalists-1235397753/Β
- The Hollywood Reporter β KATSEYE Grammy Nominations: https://www.hollywoodreporter.com/music/music-news/katseye-grammy-nominations-best-new-artist-1236421077/Β
- Rolling Stone β Girl Group Grammy History: https://www.rollingstone.com/music/music-news/katseye-golden-girl-group-grammy-history-1235461370/
- Grammy.com β KATSEYE Profile: https://www.grammy.com/news/everything-to-know-about-katseye-global-girl-group-k-pop
- BiographyHive β Jeong Yoonchae Biography: https://www.biographyhive.com/biography/dancer/jeong-yoonchae-biography-age-height-parents-siblings-ethnicity-boyfriend-songs-net-worth/Β
- IMDb β Jeong Yoon-chae: https://www.imdb.com/name/nm15203888/bio/Β
- HITKULTR β Yoonchae Jeung Profile: https://hitkultr.com/artists/yoonchae-jeungΒ
