Sistar - Alone, 씨스타 - 나 혼자, Music Core 20120519

Did you enjoy this video? Plz click "like"! For more awesome videos, subscribe our channels!! Daily update available! ☞ Watch more clips of SISTAR    • SISTAR - 씨스타   Sistar - Alone, 씨스타 - 나 혼자, Show! Music Core(쇼! 음악중심), EP308, 2012/05/19, MBC TV, Republic of Korea