AceShowbiz -

Speculations about Taylor Swift writing the diss track "Bad Blood" with Katy Perry in mind are probably true. According to a new report by TMZ, the two ladies' alleged feud started after three of the country/pop superstar's dancers quit to join the "Roar" hitmaker's tour.

The site said that the dancers first worked with Perry on her "Teenage Dream" tour. While waiting for the pop star to go back on the road, they signed up for Swift's tour and became close to her. The "Shake It Off" singer considered them family, so she felt betrayed when the dancers gave her their 30-day notice after Perry announced a new tour.

"Taylor got so pissed off she fired them on the spot," TMZ claimed.

The revelation came after Swift said in a new interview with Rolling Stone that her "1989" album would feature a new song titled "Bad Blood" that was inspired by fellow female entertainer whom she refused to name.

"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?' " she told the magazine. "[Then last year] she did something so horrible. I was like, 'Oh, we're just straight-up enemies.' "

Although Swift said the feud wasn't over a guy, fans began speculating that the song was about Perry as the girls were both romantically linked to John Mayer. After the interview was published, Perry hinted in a Twitter post that she's the frenemy Swift was talking about.

"Watch out for the Regina George in sheep's clothing," she wrote, referring to Rachel McAdams' character in "Mean Girls".