【k-pop】 B1A4 - 이게무슨일이야 (What's Happening?) 2013 KBS Song Festival 131227.mp4
2013/12/27
130515 B1A4 - 'What's Happening?' Dance Practice Video
2013/5/15
130510 Music Bank in O-Song Comeback Stage B1A4 - Yesterday + What's Happening ?
2013/5/11
[K-POP] B1A4 - Yesterday+What's Happening (LIVE)130509 [HD]
2013/5/9
日本語字幕 ♬ B1A4 ★ What's Happening (K-POP/MV)
★【新曲】B1A4 - What's Happening MV (HD)
2013/5/7