CLASS:y (클라씨)
- Debut (Y.M.D): 22.05.05
- Latest Album Released (Y.M.D): 23.12.20
- Label: M25
- Music Videos: Shut Down, Classy, Tick Tick Boom, Zealous
- Discography: CLASS IS OVER, Lives Across, Can I Call It Love (사랑이라 부를 수 있을까), Day & Night, My Love, Winter Bloom
- Fan Club: CLIKE:y
- Symbol:
OFFICIAL SITES:
MEMBERS:
- Name (Real Name): Myung Hyung Seo (Myung Hyung Seo)
- Hangul: 명형서
- Position: Vocal
- Birthday (Y.M.D): 01.06.25
- Nationality: Korean
- Height: 160cm (5ft 3in)
- Blood Type: A
- MBTI: ESFJ
- Sub-Unit: N/A
- Formerly Of*: Busters
- Name (Real Name): Yoon Chae Won (Yoon Chae Won)
- Hangul: 윤채원
- Position: Vocal
- Birthday (Y.M.D): 03.06.04
- Nationality: Korean
- Height: 160cm (5ft 3in)
- Blood Type: O
- MBTI: ISTP
- Sub-Unit: N/A
- Name (Real Name): Hong Hye Ju (Hong Hye Ju)
- Hangul: 홍혜주
- Position: Leader, Dance
- Birthday (Y.M.D): 03.12.09
- Nationality: Korean
- Height: 165cm (5ft 5in)
- Blood Type: O
- MBTI: ISFJ
- Sub-Unit: N/A
- Name (Real Name): Kim Ri Won (Kim Ri Won)
- Hangul: 김리원
- Position: Vocal, Dance
- Birthday (Y.M.D): 07.01.11
- Nationality: Korean
- Height: 155cm (5ft 1in)
- Blood Type: AB
- MBTI: ISFP
- Sub-Unit: N/A
- Name (Real Name): Won Ji Min (Won Ji Min)
- Hangul: 원지민
- Position: Vocal
- Birthday (Y.M.D): 07.11.25
- Nationality: Korean
- Height: 172cm (5ft 8in)
- Blood Type: AB
- MBTI: ISTP
- Sub-Unit: N/A
- Name (Real Name): Park Bo Eun (Park Bo Eun)
- Hangul: 박보은
- Position: Vocal
- Birthday (Y.M.D): 08.02.11
- Nationality: Korean
- Height: 157cm (5ft 1in)
- Blood Type: O
- MBTI: ENTP
- Sub-Unit: N/A
- Name (Real Name): Kim Seon You (Kim Seon You)
- Hangul: 김선유
- Position: Dance, Maknae
- Birthday (Y.M.D): 08.03.20
- Nationality: Korean
- Height: 160cm (5ft 3in)
- Blood Type: B
- MBTI: ISTP
- Sub-Unit: N/A