Eunhyuk

MC

Kim So-hyun

MC

Heo Sol-ji

Vocal mentor

Crush

Vocal Mentor

Bae Hyeon-jun

Kim Jun-seo

Self - Contestant

Shin Ye-chan

Self - Contestant

Kim Tae-woo

Self/ Contestant

Jung Jinsung

Self/ Contestant

Jeong Taek-hyeon

Self/ Contestant

Jeon Doyeom

Self/ Contestant

Yoo Yongha

Self/ Contestant

Lee Seung-hwan

Self/ Contestant

Park Sungwon

Self/ Contestant