4:13 B1A4 - O.K (Full ver.) 3:33 B1A4 - Okay, 비원에이포 - 오케이, Music Core 20110423 3:34 B1A4 - OK [Audio] 3:33 [REQUESTED] B1A4 (비원에이포) – O.K (Color-Coded Lyrics/가사 HAN/ROM/ENG) 3:08 B1A4 - Okay, 비원에이포 - 오케이, Music Core 20110604 4:47 B1A4 - O.K 안무 영상 (Dance Practice Video) 3:33 【TVPP】B1A4 - Okay, 비원에이포 - 오케이 @ First Debut Stage, Show Music core Live 3:09 [110605] B1A4 - OK 3:34 B1A4 (비원에이포) - O.K (오케이) Color Coded Lyrics Han/Rom/Eng 3:09 B1A4 - Okay, 비원에이포 - 오케이, Music Core 20110521 2:58 [110610] B1A4 - OK (Goodbye Stage) 4:00 B1A4 - OK [BABA B1A4 in Seoul] (Hangul, Romanization, Eng Sub) 3:09 B1A4 - Okay, 비원에이포 - 오케이, Music Core 20110507 3:10 [HD] [110605 SBS популярная песня] B1A4 3:34 B1A4- O.K lyrics [Eng. | Rom. | Han.] 3:29 【TVPP】B1A4 - Okay, 비원에이포 - 오케이 @ MBC Kyungnam Opening Celebration Show Live Live 3:48 Wanna One (워너원) - 에너제틱 (Energetic) MV 3:24 [MV] OH MY GIRL(오마이걸) _ Nonstop(살짝 설렜어) 3:35 온앤오프(ONF) 'Bye My Monster' MV