[NEWS] Jessica and Krystal Cover Ke$ha Song

Jessica of SNSD and f(x) member Krystal got together at the SM TOWN Live '10 concert in Seoul and performed a cover of the popular song "Tik Tok"! The song impressed many fans, due to their nearly flawless English and hot dance moves. Check out a fancam of it below, and tell us what you think! Does it beat Ke$ha's version? Or is Ke$ha's version the only one you'll recognize as something good?

Click the LINK to watch the video.