SISTAR’s Bora is impressed by Gukkasten’s performance of “Alone” on ‘I Am a Singer 2′

The indie bandGukkastenrecently performed a version ofSISTAR‘s hit song “Alone“, and memberBoraexpressed her amazement at the awesomeness of the performance through SISTAR’s official Twitter account.

“Gukkasten’s performance was the best!!!!! Wow~ I got goosebumps ~.~ To think he sang SISTAR’s “Alone” … thank you so much!”

Meanwhile, Gukkasten placed in first place for their amazing rendition of the track. Check out their version below!