Taylor Swift Reveals "I Knew You Were Trouble" Is About One Direction's Harry Styles

Taylor Swift has revealed in a new interview that her smash-hit single, "I Knew You Were Trouble" was indeed written about her ex-boyfriend, Harry Styles of One Direction.

You can find an excerpt from the article by clicking read more.

“You’re balancing the analytical side of your brain,” Taylor says about performing at the BRIT Awards, “which is telling you where to go and how to go there, with the other side of your brain, which is saying ‘Feel everything you’re singing, and show it on your face. Feel everything exactly as you felt it when you wrote the song.’

Tay Tay definitely seemed to “feel everything” at the BRITs when she tore off a wedding dress to reveal sexy black lingerie. The Sunday Times magazine interviewer then asks if she was horrified to perform “I Knew You Were Trouble” in front of Harry she says, “Well, it’s not hard to access that emotion when the person the song is directed at is standing by the side of the stage watching.”