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Taylor Swift may have made her oh-so-subtle Grammy performance of “We Are Never Ever Getting Back Together” about Harry Styles, but it’s her latest hit that’s really about the One Direction star.

"'I Knew You Were Trouble' is one hundred percent about Harry,” a friend of Taylor’s told Radar Online. “She knew he was young and popular with the ladies and wasn't ready for a serious relationship, but somehow hoped she could make it work."

From the looks of things, Harry really was trouble from the beginning. He and Tay split up last April when he was caught kissing a model in Australia, then they got back together in October only to break up again over New Years.

And Taylor didn’t take the break-up(s) well! She was “crushed” when she and Harry split, so she turned to her usual method of heartbreak relief: Writing a mega-hit pop song about it.

Aw, it's just like mom used to say! Nothing heals a broken heart like time, ice cream and another Triple Platinum hit.

Source: Radar Online