Country superstar Taylor Swift recently sat down with Rolling Stone where she talked about her upcoming single "Bad Blood."

During the interview, the "Shake It Off" songstress talked about her ongoing feud with another female artist and now multiple sources are speculating that she could be referring to Katy Perry.

"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, the other star crossed a line. She did something so horrible. I was like, 'Oh, we're straight-up enemies.' And it wasn't even about a guy! It had to do with business. She basically tried to sabotage and 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," Swift explained to the publication.

Multiple sources revealed that Perry hired three dancers who were working with Swift on her "Red" tour, to join her on her "Prismatic" world tour, Entertainment Wise reported.

One of Swift's dancers, Lockhart Brownlie spoke to Examiner and even said that Perry's tour was more fun than that of Swift's.

"I was with Taylor for the first six months. It was a great experience and she's a great person to work with, but then Katy contacted us. Obviously, we were with Katy for 2 ½ years, she's like family to us, so we were like, 'absolutely.' We weren't really dancing on Taylor's tour anyway so I had got a little bored and I really wanted to do a promo tour," he said.