Two-X – Top Win One and X (투엑스)
- Debut (Y.M.D): 12.08.16
- Latest Album Released (Y.M.D): 16.08.23
- Label: Star Gaze Entertainment
- Music Videos (Official Videos): Double Up, Ring Ma Bell (링마벨), Over (꽂혀)
- Discography: Double Up, Ring Ma Bell (링마벨), Reboot
- Fan Club: Doubling
- Symbol:
OFFICIAL SITES:
- Daum Café
- Homepage
- Youtube
- Twitter / Instagram / V App
- Jiu @ / im_jiujiuji
- Eun @ / eunmi_choi_
- Surin @ / surin__kim
- Eunyoung @ / eun_nyon9
MEMBERS:
- Name (Real Name): Jiu (Im Chang-Sook)
- Hangul:지유
- Position: Leader, Vocal
- Birthday (Y.M.D): 89.06.15
- Nationality: Korean
- Height: 167cm (5ft 5in)
- Weight: 47kg (103lbs)
- Blood Type: B
- Sub-Unit: N/A
- Name (Real Name): Eun (Choi Eun-Mi)
- Hangul: 은
- Position: Vocal
- Birthday (Y.M.D): 90.05.14
- Nationality: Korean
- Height: 165cm (5ft 4in)
- Weight: 48kg (105lbs)
- Blood Type: A
- Sub-Unit: N/A
- Name (Real Name): Surin (Kim Soo-Rin)
- Hangul: 수린
- Position: Vocal
- Birthday (Y.M.D): 91.12.27
- Nationality: Korean
- Height: 167cm (5ft 5in)
- Weight: 46kg (101lbs)
- Blood Type: B
- Sub-Unit: N/A
- Name (Real Name): Eunyoung (Joo Eun-Young)
- Hangul: 은영
- Position: Rap, Maknae
- Birthday (Y.M.D): 92.06.12
- Nationality: Korean
- Height: 164cm (5ft 4in)
- Weight: 45kg (99lbs)
- Blood Type: A
- Sub-Unit: N/A
FORMER MEMBERS:
- Name (Real Name): Minjoo (Kwak Min-joo)
- Hangul:민주
- Position: Rap
- Birthday (Y.M.D): 90.10.12
- Nationality: Korean
- Height: 164cm (5ft 4in)
- Weight: 47kg (103lbs)
- Blood Type: O
- Sub-Unit: N/A