Oh! My School

Episode 22 (1x22)

Air date: Apr 16, 2011

Cast: Soyeon (T-ara), Lee Joon (MBLAQ), Lee Gi Kwang (B2ST), Yang Yo Seob (B2ST), Min (miss A), Hyosung (Secret), Simon D (Supreme Team), Chun Myung Hoon (NRG), Ha Chun Hwa & Kim Young Chul