VIDEO – American Music Awards Taylor Swift ‘I Knew You Were Trouble’ Performance

Taylor Swift – I Knew You Were Trouble – AMA's… by IdolxMuzic

gave a fantastic performance of her new song ‘I Knew You Were Trouble’ (rumored to be about ex-boyfriend John Mayer) last night, Sunday, November 18, at the 2012 American Music Awards.

Swift showed up on stage in a pretty white gown and later in the song stripped it off to reveal a red/black tulle outfit.

Check out her performance!