“I Knew You Were Trouble” is the third official single off Swift’s fourth studio album “Red.” It was written by the singer herself and co-written by Max Martin and Shellback.
Rumor has it that the line in the song “When You Saw Me Dancing” pertains to the singer/songwriter’s reported date with One Direction heartthrob and noted playboy Harry Styles. The British boyband member reportedly made out with another girl in Australia while dating Swift, thus fulfilling the “you never loved me or her or anyone” portion of the lyrics.
The music video was directed by Anthony Mandler and features the star of Spider-Man musical Reeve Carney as Swift’s leading man.
Watch the music video here: