Episode 4

Lee Seung-gi

Self - MC

Cho Kyu-hyun

Self - Judge

Tiffany Young

Self - Judge

Jay Park

Self - Judge

Lee Gi-kwang

Self - Judge

Kim Sung-kyu

Self - Judge

Song Min-ho

Self - Judge

Shim Jae-won

Self - Judge

Ryan Jhun

Self - Judge

Moonbyul

Self - Judge

Lee Seung-hyun

as a member of AIMERS

Choi Eun-jun

as a member of AIMERS

Kim Do-ryun

as a member of AIMERS

Kim Yo-el

as a member of AIMERS

Park Seung-hwan

as a member of AIMERS