S1, E154: Choi Jung Won, Kim So Hyun, and Cha Ji Yeon perform, give special lessons and select specific members to perform with.

Starring Choi Jung-won, Cha Ji-yeon, Kim So-hyun
S1, E154: Choi Jung Won, Kim So Hyun, and Cha Ji Yeon perform, give special lessons and select specific members to perform with.