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Hong Isaac
Tae-il
Jang Ha-eun
Ji-won
Seo Young-jae
Deok-ho
Jang Da-hyeon
Bok-soon
Yang Tae-hwan
Ki-tae
Cha Min-ho
Bae-dol
Hwang Da-sol
Ho-tae
Lee Na-woo
Dong-hoon
Hwang Min-jae
Chan-gyoo
Chae Yeon-jung
Representative Kim
Choi Yeon-soo
Gemma
Go Tae-hee
Hae-min
Ja I-ro
Sang-jae
Kim Eui-sung
Director Ahn
Kim Sang-hoon
Sang Mi-nem
Uhm Yoon Jung
Assistant
Song In-seop
Min-seop
Kim Yeong-jin
Min-seop's Band Drummer
Jeon Yong-joon
Min-seop's Band Pianist
Park Chan-yeong
Cellist
Kim Yo-han
High School Pianist
Park Hyeon-woo
Middle School Rapper
Kim Seong-hoon
Famous Musician 1
Kim Ha-jin
Famous Musician 2
Yang Ji-wan
Famous Musician 3
Jeon Hwa-ryeong
Famous Musician 4
Hyeon Seok-joon
Male High School Student
Woo Hyeon-seo
Female High School Student
Jeong Jae-hoon
Finals Contest MC
Go De-i
Ukulele Elementary School Student
Lee Yeong-seo
Big Friend
Sin Dong-ho
Finals Judge 1
Jang Hong-mi
Finals Judge 2
Lee Won-min
Finals Judge 3
Kim Seong-ah
Middle-aged Woman
Kang Min-seok
Hae-min's Dance Team 1
Kim Yoo-bin
Hae-min's Dance Team 2
Tak Jae-min
Hae-min's Dance Team 3
Lee Hwa-ik
Sang-jae Band's Sessions Member 1
Jeong Gwang-hee
Sang-jae Band's Sessions Member 2
Hwang Dae-hyeon
Sang-jae Band's Sessions Member 3
Lee Sang-il
Music Video Senior Director
Kim Mi-kyeong
Music Video Staff
Lee Ji-hyeon
Finals Participant 1
Jeong Woo-jae
Finals Participant 2
Ryoo Han-jong
Entertainment Staff
Jo Pil-seong
Musician in the Picture
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