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Lee Seung-gi
National producer
Lee Hong-gi
Vocal trainer
Soyou
Vocal trainer
Kim Eun-young
Rap trainer
Bae Yoon-jung
Dance trainer
Kwon Eun-bi
Contestant
Kang Hye-won
Contestant
Sakura
Contestant
Choi Ye-na
Contestant
Kim Chaewon
Contestant
Lee Chae-yeon
Contestant
Kim Min-ju
Contestant
Hitomi Honda
Contestant
Nako Yabuki
Contestant
Jo Yu-ri
Contestant
ANYUJIN
Contestant
JANGWONYOUNG
Contestant
Lee Ka-eun
Contestant
Jang Gyu-ri
Contestant
Wang Yiren
Contestant
Kim Si-hyeon
Contestant
Kim Dayeon
Contestant
Kim Do Ah
Contestant
Chaejeong
Contestant
Huh Yunjin
Contestant
Choi Yeon-soo
Contestant
이시안
Contestant