TV Article Paramore's Hayley Williams covers Lady Gaga's 'Bad Romance' By Simon Vozick-Levinson Published on March 29, 2010 02:09PM EDT Lady Gaga covers: Everyone’s doing them! Including Paramore lead singer Hayley Williams, 21, who shot a piano-based take on “Bad Romance” and posted the clip via Twitter yesterday. Not bad at all. “Playing ‘Bad Romance’ on the piano and pretending to be @LadyGaga,” Williams tweeted before liberating the video. “Why haven’t I ever done this before? Most fun I’ve had in ever.” And, later: “feel a bit crazy posting this… but you asked for it! my apologies to miss gaga. love, your friend, lady haha.” Watch Hayley’s (er, Lady Haha’s) “Bad Romance” after the jump and see what you think. (Follow the Music Mix on Twitter: @EWMusicMix.) More from EW.com’s Music Mix: Erykah Badu’s naked “Window Seat” video: Watch the provocative clip here Justin Bieber, Rihanna perform at Kids’ Choice Awards 2010 The awesome Gaga/Beyoncé “Telephone” parody video you knew was coming Broken Social Scene: Hear two awesome new songs from Forgiveness Rock Record Close