20130503 Music Bank Comeback StageT-ara N4 Stage → sm20765703 Secret Stage → sm20766505
http://www.nicovideo.jp/watch/sm20764846
![[K-POP] T-ara N4 & Secret - Back Stage (Comeback 20130503) (HD)](https://nicovideo.cdn.nimg.jp/thumbnails/20764846/20764846)