Sunny
- YuRi
- Birth Name: Kwon Yu Ri / 권유리
- Date of Birth: December 5, 1989
- Height: 167 cm.
- Weight: 45 kg.
- Bloodtype: O
- Position: Supporting Vocalist/2nd Lead Dancer
- Language: Korean, Chinese
- Speciality: Dance,Acting,Swimming
- Training: 5 Years 11 Month
- School: Neunggok High School(능곡고등학교)
- Career: 2006 CF Same Highbill Lake City 2006 MV DBSK ‘Beautiful Life’ 2006 CF China Chocopie CF (2006) 2006 CF East-West food Hat Choco mitte 2007 The Movie ‘Attack on the Pin-Up Boys’(Ballet Girl) 2007 KBS Sitcom ‘Unstoppable Marriage’
- SooYoung
- Birth Name: Choi Soo Young / 최수영
- Date of Birth: February 10, 1990
- Height: 170 cm.
- Weight: 45 kg.
- Bloodtype: O
- Position: Supporting Vocalist
- Language: Fluent in Korean & Japanese
- Speciality: Dance, Eloquence, Acting
- Training: 6 Years 3 Month
- School: Jeongshin Girl’s High school(정신여자고등학교)
- Career: 2002 Japanese Duo Girl ‘Route O’ 2003 CF Samsung Anycall Battle of Music 2004 School uniforms ‘Rocks’ model 2005 VJ M.net ‘Hello Chat’ 2007 DJ Melon Cheonbangjichuk the radio ‘Sungmin&Sooyoung’ 2007 KBS Sitcom ‘Unstoppable Marriage’
- Jessica
- YOONA
- Birth Name: Lim Yoon A / 임윤아
- Date of Birth: May 30, 1990
- Height: 166 cm.
- Weight: 46 kg.
- Bloodtype: B
- Position: Supporting Vocalist/Lead Dancer
- Language: Korean, Chinese
- Speciality: Dance,Acting
- Training: 7 Years 2 Month
- School: Daeyeong High School(대영고등학교)
- Career: 2004 Elite Student uniforms advertising model 2004 MV DBSK ‘Magic Castle’ 2006 CF Teun Teun English 2006 CF Sanyo batteries eneloop 2006 CF Elite Student uniforms 2006 MV Super Junior ‘U’ 2006 MV CSJH The Grace ‘My Everything’ 2007 Clean&Clear 2007 Sunkit Grapefruit/Lemonade 2007 MBC drama ‘Two out nine’(Shin Ju Yeong) 2007 MV Super Junior ‘Marry U’ 2008 MV Lee Seung Chul ‘Propose’
- SeoHyun
- Tae Yeon
- Birth Name: Kim Tae Yeon / 김태연
- Date of Birth: March 9, 1989
- Height: 162 cm.
- Weight: 44 kg.
- Bloodtype: O
- Position: Leader, Main Vocalist
- Language: Korean, Chinese
- Speciality: Trot
- Training: 3 Years 3 Month
- School: Jeonju Art High school(전주예술고고등학교)
- Career: 2004 Featured with The One ‘You Bring me Joy’(Part 2) 2007 CF Mobile Stone in the Wate