One of the best parts of listening to Taylor Swift's music is figuring out who she wrote her songs about. While Taylor reportedly dissed Harry Styles and Kendall Jenner in her song "Shake It Off," the singer reveals that the subject of her upcoming song "Bad Blood" isn't about an ex — it's about a major female artist.

In a new interview with Rolling Stone, Taylor discusses her frenemy-turned-enemy.

"For years, I was never sure if we were friends or not. She would come up to me at awards shows and say something and walk away, and I would think, 'Are we friends, or did she just give me the harshest insult of my life?' [Then last year] she did something so horrible. I was like, 'Oh, we're just straight-up enemies.' And it wasn't even about a guy!"

"It had to do with business," Taylor said. "She basically tried to sabotage an entire arena tour. She tried to hire a bunch of people out from under me. And I'm surprisingly non-confrontational — you would not believe how much I hate conflict. So now I have to avoid her. It's awkward, and I don't like it."

That's so sneaky! We can't believe that someone would try to sabotage Taylor's tour, especially if they're successful on their own.

We're definitely interested in finding out who it is, even though we don't have much to go on. However, we can definitely rule out Selena Gomez and Demi Lovato — they're both still friendly with Taylor.

Our guess? We'll have to wait for the song to come out to fully decode her clues, but we think it could be about Katy Perry. They used to be photographed at award shows a lot together, but haven't been recently. Plus, they do share an ex, John Mayer, which could contribute to the drama.

Who do you think Taylor could be talking about? Tell us what you think in the comments!