Yoon Chae-won (윤채원), known as CHAEWON, is one of CLASSy’s main vocalists. She became a member through MBC’s My Teenage Girl and debuted with the seven-member group on May 5, 2022.

As one of CLASSy’s principal singers, CHAEWON brings a clear, expressive tone to the group’s choruses. Her vocal role is particularly noticeable in melodic passages that balance the group’s powerful choreography with a more intimate emotional delivery. This makes her contribution distinct from the rap-focused and dance-focused parts of the group’s performances.

CHAEWON received a lyric credit on Tear Drop, the title track of the 2026 EP RE:BOOT [AFTER TEARS]. The same album features her own song, Youth, accompanied by an official solo performance video. It is an individual recording within CLASSy’s comeback project, not a separate full-length solo debut.