Taylor Swift plays music.
`` Bad Blood '' is a song by American singer-songwriter Taylor Swift , from her fifth studio album 1989 ( 2014 ) . `` I Knew You Were Trouble '' is a song recorded by American singer-songwriter Taylor Swift for her fourth studio album , Red ( 2012 ) . Speak Now is the third studio album by American country singer-songwriter Taylor Swift . Taylor Alison Swift ( born December 13 , 1989 ) is an American singer-songwriter . The album 's third single , `` Our Song '' , made her the youngest person to single-handedly write and perform a number-one song on the Hot Country Songs chart .