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So Cool (Sistar album) So Cool. (Sistar album) From left to right: Soyou, Bora, Hyolyn and Dasom. So Cool is the debut studio album by South Korean girl group Sistar. It was released on August 9, 2011, by Starship Entertainment. The song of the same name was released as the title track. The album consists of 12 songs, 5 new songs and a special ... download transformer 3