Q.O.S – Queens of Sound (큐오스)
- Debut (Y.M.D): 20.05.28
- Latest Album Released (Y.M.D): 21.09.09
- Label: VT Entertainment
- Music Videos: FAW (Find a Way), Miracle (기적을 일으켜)
- Discography: Miracle (기적을 일으켜), FAW, All Love, Oh Yeah
- Fan Club: N/A
- Symbol:
OFFICIAL SITES:
- Daum Café
- Homepage
- Youtube
- Twitter / Instagram / V App
- Terra @ / terra.voice
- Seul-E @ / mggh_h
MEMBERS:
- Name (Real Name): Terra (Yoon Jeong)
- Hangul: 테라
- Position: Leader, Vocal
- Birthday (Y.M.D): 94.03.02
- Nationality: N/A
- Height: 160cm (5ft 3in)
- Weight: 48kg (106lbs)
- Blood Type: A
- Sub-Unit: N/A
- Name (Real Name): Seul-E (Moon Ji Hye)
- Hangul: 슬이
- Position: Vocal, Keyboard
- Birthday (Y.M.D): 95.06.15
- Nationality: N/A
- Height: 160cm (5ft 3in)
- Weight: 47kg (104lbs)
- Blood Type: A
- Sub-Unit: N/A
FORMER MEMBERS:
- Name (Real Name): Nicky (Kim Ju Yeon)
- Hangul: 니키
- Position: Vocal, Violin
- Birthday (Y.M.D): 95.10.10
- Nationality: Korean
- Height: 165cm (5ft 4in)
- Weight: 47kg (104lbs)
- Blood Type: N/A
- Sub-Unit: Solo
- Formerly of*: AiRiSu as Eunbi
- Name (Real Name): Da Hee (N/A)
- Hangul: 다희
- Position: N/A
- Birthday (Y.M.D): –.–.–
- Nationality: N/A
- Height: N/A
- Weight: N/A
- Blood Type: N/A
- Sub-Unit: N/A