씨스타 1st Mini Album _Alone 나혼자(Alone) HD Music video . SISTAR _Alone ℗ STARSHIP ENTERTAINMNET Album Title : SISTAR 1st Mini Album Title Song : 나혼자(Alone) Release : 04.12.2012 More Info: = Google+ SISTAR : plus.google.com/113010328994977384681#113010328994977384681