Taylor Swift plays music.
`` I Knew You Were Trouble '' is a song recorded by American singer-songwriter Taylor Swift for her fourth studio album , Red ( 2012 ) . Taylor Alison Swift ( born December 13 , 1989 ) is an American singer-songwriter . Her fourth album , Red ( 2012 ) , yielded the successful singles `` We Are Never Ever Getting Back Together '' and `` I Knew You Were Trouble '' .