Kim Chae-yeon

Kim Chae-yeon (; born December 4, 2004) is a South Korean singer and actress. She is a member of the South Korean girl group tripleS and its sub-units, Krystal Eyes, Acid Eyes, Evolution, Aria, Hatchi and Sun.

She is a former member of South Korean girl groups CutieL and Busters. As an actress, Kim began her career by starring in the film Scandal Makers (2008).

Early life Kim Chae-yeon was born on December 4, 2004, in Mia-dong, Gangbuk District, Seoul, South Korea. Kim became interested in the entertainment industry since 10 years old. She was scouted by a child model street casting agent when she was in second grade of elementary school, around 7 or 8 years old. Her parents were initially doubtful but encouraged her to give it a try. After seeing herself on television, she decided she wanted to be a celebrity. She initially aspired to be a day-care teacher or a racing player. In 2014, Kim became a member of the children's group 'CutieL' as a 2nd generation member. In 2017, all 2nd generation members departed from the group. She was announced to be a member of Busters when they were formed to promote Monstergram's upcoming TV series Idol Rangers Power Busters. She made her debut with the group's single album Dream On on November 27, 2017, In 2018, she auditioned to become the new MC of 'Tok! Tok! Boni Hani', she passed the first and final auditions and was selected as the official MC of the show. On August 6, 2020, Kim left the group to continue acting and other activities. On July 21, 2021, Kim signed an exclusive contract with YK Media Plus, also effectively changing her stage name into her real name for promotional purposes.

2022–present: Debut with tripleS On June 16, 2022, it was reported that Kim would be re-debuting as a member of TripleS. On June 22, Kim was introduced as the fourth member of the group. In July 2022, Kim sung the original soundtrack for the animation series Armored Saurus Season 2. On September 16, 2022, TripleS announced they would be debuting their first two sub-units, with the members being voted by fans. On September 22, Kim became the third member announced as a member of the sub-unit Krystal Eyes. Following with the debut of +(KR)ystal Eyes on May 4, 2023, with their mini album, 'Aesthetic'. On April 19, Kim threw a ceremonial first pitch at a Samsung Lions and Kiwoom Heroes baseball game. EVOLution debuted with their EP '<⟡> (MUJUK)' on October 11. On November 24, Kim was chosen as a member of the new ballad sub-unit, Aria.

On May 8, 2024, Kim, alongside TripleS, released the group's first comeback, Assemble24. On August 27, she was revealed as a member of Hatchi, TripleS' subunit focusing on Japanese promotions. Subsequently, Kim, together with Hatchi, released the single album Untitled.

On May 12, 2025, Kim, alongside TripleS, released the group's second comeback, Assemble25. On September 8, she was revealed as a member of Sun.

Endorsements Kim has appeared in commercials for Pengtalk, Perfect Score Math Plus, Knights Chronicles and GS25. In 2019, she collaborated with Academy Sciences, launching a toy product called 'Creating a Creator' for children who want to be a one-man creator. In 2025, Kim became the advertising model for 'Dr Wonder'.

Discography

Soundtrack appearances + List of soundtrack appearances, showing year released and album name Title Year Peak chartpositions AlbumKOR "MilkT Time" 2019 — MilkT OST "We are the One" 2022 — Armored Saurus: Season 2 OST

Filmography

Film Year Title Role Notes 2008 Scandal Makers Bang Ah-ran Guest role 2016 The World of Us Kim Taeyeon Supporting role Oh! My God Returns Jin Han-ah 2023 Armored Saurus: Invasion of the Mechanical Dinosaur Empire Joo-hee Supporting role

Television series Year Title Role Notes 2013Hur Jun, The Original Story Butchers DaughterGuest role Ugly Alert Gong Jin-joo's friend The Queen's Classroom Ma Yeo-jin (young) 2019 My YouTube Diary Hera / Queen Hera 2021 Armored SaurusJoo-hee 2022 Armored Saurus: Season 2

Theater Year Title Korean Title Role 2025Solo Leveling on Ice나 혼자만 레벨업 on ICE Sung Jin-ah

Web shows Year Title Role 2022Dream Center Study Room Cast Member 2024 Kkondae Z

Television shows Year Title Role Notes 2018 Cooking Class Cast Member Episodes 145–192 2019–2021 Talk! Talk! Boni Hani Episodes 3766–4313 2021 Quiz Monster with Haha

Hosting Year Title Notes 2018K-Pop Model Contest with Jung Min-gyu

Radio