Kim Yoo-yeon, known mononymously as YooYeon, is a South Korean singer and actress who has gained recognition as a member of the K-pop girl group tripleS and its various sub-units. Born on February 9, 2001, in Seoul, South Korea, she has made significant strides in the entertainment industry, showcasing her talents in both music and acting. YooYeon’s journey to stardom began with her participation in the survival show ‘My Teenage Girl,’ where she narrowly missed debuting with the group CLASSy but later found success with tripleS. Her story is one of perseverance and passion, resonating with many aspiring artists.
Early Life and Education
YooYeon was born in Banpo-dong, Seocho District, Seoul. From a young age, she demonstrated a keen interest in academics, particularly in natural sciences. She attended Sehwa Girls’ High School and later enrolled at Ewha Womans University, majoring in Science Education. Despite her academic achievements, YooYeon harbored dreams of becoming a celebrity. Initially, her parents, both professionals in the medical field-her mother being a pharmacist and her father a doctor-were supportive of her education but were hesitant about her aspirations in the entertainment industry. This led to a period of internal conflict for YooYeon, who eventually decided to pursue her passion for music and performance.
Career Beginnings
YooYeon’s entry into the entertainment world began with her participation in the survival show ‘My Teenage Girl.’ Although she finished in 8th place and did not debut with CLASSy, the experience provided her with valuable exposure and training. In July 2022, she was introduced as the fifth member of tripleS under MODHAUS, a K-pop girl group known for its unique concept of sub-units and member rotations. YooYeon’s inclusion in the group marked the beginning of her professional career in the music industry.
TripleS and Sub-Units
tripleS debuted on February 13, 2023, with the mini album ‘ASSEMBLE’ and the title track ‘Rising.’ YooYeon was part of the initial lineup, contributing to the group’s distinctive sound and concept. Beyond her role in the main group, YooYeon has been active in several of tripleS’s sub-units, each with its unique style and musical direction
- Acid Angel from Asia– YooYeon debuted with this sub-unit on October 28, 2022, with the mini album ‘ACCESS’ and the title track ‘Generation.’
- EVOLution– She made her debut with EVOLution on October 11, 2023, with the mini album ‘<⟡>‘ and the title track ‘Invincible.’
- Visionary Vision– YooYeon joined this sub-unit on October 23, 2024, with the studio album ‘Performante’ and the title track ‘Hit the Floor.’
- Hatchi– She became a member of Hatchi, debuting on November 20, 2024, with the single album ‘Untitled.’
- Sun– YooYeon was determined as a member of Sun on September 5, 2025, through the msnz Grand Gravity.
Acting Career
In addition to her music career, YooYeon has ventured into acting. She made her acting debut in the web drama ‘WHAT’S UP,’ where she portrayed the character Lee Yu-jin. The drama began airing on April 7, 2024, showcasing her versatility as an entertainer. YooYeon’s involvement in acting reflects her desire to expand her artistic horizons and connect with audiences in different mediums.
Personal Life and Interests
Outside of her professional endeavors, YooYeon has various interests and hobbies. She enjoys skiing, taking walks, and sleeping. Her favorite foods include sushi, Korean beef, maratang, tteokbokki, and chocolate. YooYeon is also known for her academic prowess, particularly in mathematics, and has been involved in various academic competitions during her youth. Despite her parents’ initial reservations about her career choice, they have come to support her decision, with her mother even purchasing a significant number of her photocard merchandise, indicating their acceptance of her path in the entertainment industry.
Discography Highlights
Throughout her career, YooYeon has contributed to several tracks within tripleS’s discography and sub-unit releases
- ‘Access’– A collaboration single with fellow member NaKyoung, released in 2022.
- ‘Happiness Over Luck’– A collaboration single with Lee Ji-woo and Mimiminu, released in 2025.
- ‘Dreaming’– A soundtrack appearance for the web drama ‘Shooting Stars,’ released in 2024.
- ‘Sonic Boom’– A participation single with ‘My Teenage Girl’ contestants, released in 2022.
Future Endeavors
As of 2025, YooYeon continues to be an active member of tripleS and its sub-units. She is also exploring opportunities in acting, with her role in ‘WHAT’S UP’ marking the beginning of her acting career. Fans eagerly anticipate her future projects, both in music and acting, as she continues to develop her skills and expand her presence in the entertainment industry.
Kim Yoo-yeon’s journey from a student with dreams of becoming a celebrity to a multifaceted entertainer is a testament to her dedication and passion. Her involvement in multiple sub-units of tripleS and her foray into acting demonstrate her versatility and commitment to her craft. As she continues to evolve as an artist, YooYeon’s story serves as an inspiration to many aspiring entertainers, highlighting the importance of perseverance and the pursuit of one’s dreams.