Cast
Shin Seung-hoon
Himself - Coach • 30 episodes
Kim Jong-kook
Self - Coach • 7 episodes
Sung Si-kyung
Self - Coach • 7 episodes
Choiza
Self - Coach • 7 episodes
Kwon BoA
Self - Coach • 7 episodes
Kim Jin-pyo
Himself - Host • 30 episodes
Jang Sung-kyu
Self - Host • 7 episodes
Gaeko
Self - Coach • 7 episodes
Baek Ji-young
Herself - Coach • 30 episodes
Kangta
Himself - Coach • 30 episodes
Gil
Himself - Coach • 30 episodes