H1-KEY (하이키)
- Debut (Y.M.D): 22.01.05
- Latest Album Released (Y.M.D): 24.02.27
- Label: GLG
- Music Videos: Athletic Girl, Run, Rose Blossom (건물 사이에 피어난 장미), Time To Shine (불빛을 꺼뜨리지 마), SEOUL (Such a Beautiful City)
- Discography: Athletic Girl, Run, Rose Blossom, Seoul Dreaming, H1-KEYnote#2 Deeper (기뻐)
- Fan Club: M1-Key
- Symbol:
- English MVs: N/A
- English Discography: H1-KEYnote #1 Thinking About You
OFFICIAL SITES:
MEMBERS:
- Name (Real Name): Seoi (Lee Ye Jin)
- Hangul: 서이
- Position: Leader, Vocal
- Birthday (Y.M.D): 00.02..12
- Nationality: Korean
- Height: 169cm (5ft 7in)
- Blood Type: B
- MBTI: ESTJ
- Sub-Unit: N/A
- Name (Real Name): Riina (Lee Seung Hyeon)
- Hangul: 리이나
- Position: Vocal
- Birthday (Y.M.D): 01.02.21
- Nationality: Korean
- Height: 172cm (5ft 8in)
- Blood Type: B
- MBTI: ESTJ
- Sub-Unit: N/A
- Name (Real Name): Hwiseo (Cho Whi Hyun)
- Hangul: 휘서
- Position: Rap, Vocal
- Birthday (Y.M.D): 02.07.31
- Nationality: N/A
- Height: 169cm (5ft 7in)
- Blood Type: A
- MBTI: INFJ
- Sub-Unit: N/A
- Also In*: EL7Z U+P
- Name (Real Name): Yel (Han Shin Young)
- Hangul: 옐
- Position: Rap, Vocal, Maknae
- Birthday (Y.M.D): 04.12.25
- Nationality: Korean
- Height: 173cm (5ft 8in)
- Blood Type: A
- MBTI: ISTJ
- Sub-Unit: N/A
FORMER MEMBERS:
- Name (Real Name): Sitala (Sitala Wongkrachang)
- Hangul: 시탈라
- Position: N/A
- Birthday (Y.M.D): 96.04.23
- Nationality: Thai
- Height: 173cm (5ft 8in)
- Blood Type: N/A
- MBTI: INTP
- Sub-Unit: N/A