The cat may be out of the bag regarding which of Taylor Swift's many exes is the subject of her latest hit 'I Knew You Were Trouble.' Judging by things that T. Swizzle said in an interview and our powers of deductive reasoning, she pretty much dropped enough clues and facts for us to come up with a "Yeah, she kinda did."

The song was rumored to be written about One Direction's Harry Styles during their brief summer romance – the one that wasn't captured by the media ... until now. Before their PDA-heavy, "Let's hold hands all over NYC and smooch on NYE" coming out party in December, Haylor had a classified romance. It didn't work out, so she did what she always does: she wrote a song.

In an interview with The Sunday Times (quotes via Yahoo!), T. Swizz was asked about performing the song at the BRITs, to which she offered this charmingly neurotic response: "You're balancing the analytical side of your brain, 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.'"

Not exactly a big reveal, right? Well, what she said when asked about performing one of her songs in front of the person who inspired it gave it up. Swift admitted to being in that situation at the BRITs.

"Well, it's not hard to access that emotion when the person the song is about is standing by the side of the stage watching," she confessed. Uh, yeah, we suggested that may have been the case when we watched the perf.

Bam! And there it is.

By our estimation, unless Jake Gyllenhaal or Joe Jonas or Taylor Lautner or John Mayer were there and somehow not captured by any of the cameras or the press, the only Swift ex who was on site was Hazza. So one and one makes two in this sitch. It was Hazza who left her lying on the cold hard ground.

So Sir Harry Styles, who supposedly split with Swizzle because she was boring, has been immortalized in a Taylor Swift song. Is Niall Horan patting him on the back?

Watch Taylor Swift Perform 'I Knew You Were Trouble' at the BRITs