SM Entertainment
- G-Dragon (BIG BANG)
- Soyeon (T-ara) - Leader of Girls Generation - Didn't feel determined/ready to debut
- Gyuri & Hara (KARA)
- Hyori Lee (Fin.K.L)
- Sungyeol (Infinite)
- Sunmi (Former-Wonder Girls)
- Gayoon (4Minute)
- Woori & Hyunyoung (Rainbow)
- Zico (Block B)
- Raina (After School)
- G.O (MBLAQ)
- Sunhwa (Secret)

JYP Entertainment
- G.NA
- HyunA (4Minute) - Rapper for Wonder Girls - Withdrew due to health
- CL (2NE1)
- Hyomin (T-ara)
- Hyorin (SISTAR)
- Jieun (Secret)
- Raina (After School)
- Youngjae (B.A.P)
- Yoseob, Doojoon, Dongwoon & Gikwang (BEAST)
- Jihyun (4Minute)
- Hoya (Infinite)
- Jaekyung (Rainbow)
- Kwangmin & Youngmin (Boyfriend)
- Soohyun (U-KISS)

YG Entertainment
- Jun.K (2PM)
- Zelo (B.A.P)
- Hyunseung (B2ST) - Big Bang - 'Eliminated' for Seungri
- Kahi (Former-After School)

DSP Media
- Gikwang (B2ST)
- Son Dambi
- Minhee (Miss $)
- NS Yoonji

Cube Entertainment
- Soyu (SISTAR)
- Jaehyo (Block-B)
 

Woolim Entertainment
- B-Bomb (Block B)