A cover of American singer Ke$ha’s Tik Tok by American-born-Korean-idol siblings Jessica & Krystal Jung at the SMTown Live concert in Seoul on August 21.
Jessica is a pop group Girls’ Generation member, while the younger Krystal is a member of f(x). Original fancam by Thsutleo (website no longer accessible). This audio is a studio version as there’s too much interference with the live audio.
[Update] A wallpaper by Woorissica [Kr]. Click image for full size (1280×800).