SISTAR recently unleashed new concept photos, their 2nd single Shady Girl, and their fresh music video featuring Super Junior's Heechul, all in the past couple of days. Before the girls take on the stage at the various music shows, they held their first ever showcase, which turned out to be a great success. Hyorin showed off her truly amazing powerful vocals by singing Whitney Houston's "I Will Always Love You," followed up by a dance break with both Hyorin and Bora doing Ciara's "Love Sex Magic." Next up was a performance of the old and famous CJSH (The Grace). Finally, the girls ended with spectacular performances of their first single, "Push Push," and also their most recent release, "Shady Girl." Check out some of the clips below, and many thanks to Vagabond for the tip. http://www.youtube.com/watch?v=cKZ_YjiSXNs http://www.youtube.com/watch?v=lLmCzHOeLy8 http://www.youtube.com/watch?v=DcTRdAQq8Ts