Earlier today, we reported that SISTAR revealed their first official album, entitled "So Cool". Their title track of the same name�has already risen to the top spots on the CyMusic, Bugs, Naver Music and Dosirak online music charts. Produced by Brave Brothers, the song is classified as 'dance-pop' with its strong beats and addictive chorus. The MV has also garnered attention for DJ DOC's special appearance. It's said that despite the late-night filming, the DJ DOC members helped the mood on set be lively and fun. SISTAR will make their first comeback performance this Thursday on Mnet's 'M! Countdown', so make sure to check it out! Source & Photo: Sports Chosun via Nate