“The song ‘Trouble’ is definitely about Harry,” a source close to the situation confirms to TMZ.com exclusively. “Taylor told Harry it’s about him. She references flying around America following One Direction’s tour in the song.”

If you’ve read the liner notes of Taylor’s Red album, it makes sense that the song is actually about her One Direction beau. The clue Taylor writes for “I Knew You Were Trouble” reads “when you saw me dancing.” This line refers to when Taylor danced in the audience to One Direction’s performance at the Kid’s Choice Awards in March 2012.