20140113 WM ENT Official Full ver Music Video2nd Album "Who Am I" Title Song "Lonely"MV Making Film→ sm22678519
http://www.nicovideo.jp/watch/sm22658258
![[K-POP] B1A4 - Lonely (MV/HD)](https://nicovideo.cdn.nimg.jp/thumbnails/22658258/22658258)