Kim Chae-won first became known to the public as a member of IZ*ONE, a project girl group formed by the 12 finalists of Mnet’s hit idol audition program “Produce 48” (2018). The group disbanded in April 2021 and a year later, Kim was revealed as a member of K-pop powerhouse HYBE’s first girl group Le Sserafim (stylized as LE SSERAFIM) along with her former IZ*ONE bandmate Miyawaki Sakura. An anagram of the phrase “I’m Fearless,” Le Sserafim debuted in May 2022 with the EP “Fearless,” which set the highest record at the time for CD sales by a debuting K-pop girl group.