SISTAR 씨스타_So Cool_Music Video [HD]

I have been into this group after I watched their latest MV. I really liked the song. I have been listening to their song for a few dozen times. Everything about this MV is awesome, included their dances, vocal and concept. They are really energetic and strong. And I like it. I watched some of their live performance too. They have a pretty good live, I have to say.