SISTAR is back and sexy as ever as they performed summer track "Touch My Body" on this week's 'Yoo Hee Yeol's Sketchbook'!  In addition, Hyorin and Soyu did a hauntingly beautiful cover of Christina Aguilera's "Hurt."

During the interview portion, Hyorin revealed that she had composed quite a lot of songs, all of which the agency listened to but turned down on the grounds that they were basically not mainstream enough as she likes to experiment with R&B and hip hop. 

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Soyu elaborated that because the songs were Hyorin's personal compositions, they were made for her and her only.  Understandably, this may make it a bit harder for people to approach the songs, but fans, nonetheless, surely want to hear some of her compositions on the girls' album soon!