Hidden Singer

Jeon Hyun-moo

Self - Host

Lee Sun-hee

Self

Baek Ji-young

Self

Kim Jong-kook

Self

Jang Yun-jeong

Self

Lena Park

Self

EJ

Self — Panelist

Lee Chae-jeong

Self — Panelist

Do-A

Self — Panelist

Yeonge

Self — Panelist

Yukyung

Self — Panelist

Kim So-hee

Self — Panelist

Karin

Self — Panelist

임소영

Self [Panelist]

Shin Jun-seop

[Panelist]

Hur Young-ji

Self - Panelist

Im Chang-jung

Self

Kangta

Self

PSY

Self

K.Will

Self

Hong Jin-young

Self

Ailee

Self

Bada

Self

Zion.T

Self

Kim Yoon-ah

Self

Park Jin-young

Self

IU

Self

Yoon Do-hyun

Self

Kim Bum-soo

Self

조성모

Self

Sung Si-kyung

Self

Bobby Kim

Self

Taeyeon

Self

Lee Juck

Self

Yoon Jong-shin

Self

Kim Tae-woo

Self

BoA

Self

Min Kyung-hoon

Self

Kim Jung-min

Self

Shin Ji

Self

Gummy

Self

Yang Hee-eun

Self

Jun In-kwon

Self

Lee Eun-mi

Self

Kim Yon-ja

Self

Kim Won-jun

Self

Hyunjae

Panelist

Juyeon

Panelist

New

Panelist

Q

Panelist

Ju Haknyeon

Panelist

Yim Jae-beum

Self

Rain

Self

Hwasa

Self

Kim Wan-sun

Self

Jang Beom-june

Self

Lee So-ra

Self

SUNMI

Self

Kim Min-jong

Self

Song Ga-in

Self

Kyuhyun

Self

Choi Jung-hoon

Self

Uhm Jung-hwa

Self

Jessi

Self

Lee Moon-se

Self

Kim Gun-mo

Self

Shin Seung-hoon

Self

Nam Jin

Self

Choi Whee-sung

Self

Kim Kyung-ho

Self

이수영

Self

Kim Jong-seo

Self

Kim Yeon-woo

Self

Park Hyun-bin

Self

Hwanhee

Self

Tae Jin-ah

Self

Insooni

Self

이승환

Self

Ok Jin-uk

Self - Panelist

심수봉

Self

Luna

Self - Panelist