Katy Perry and Calvin Harris dating to take revenge on Taylor Swift?

Katy Perry and Calvin Harris teamed up to record a song for his upcoming album.

Katy Perry and Taylor Swift
Katy Perry and Taylor Swift are not in good terms Reuters

Katy Perry is rumoured to be dating Calvin Harris. The two got reportedly close after the Roar hitmaker teamed up with Taylor Swift's former boyfriend to record a song for his upcoming album, Funk Wav Bounces Vol 1.

A source told Heat magazine: "Katy and Adam [Calvin's real name] really bonded while making their track, and have been in constant contact ever since."

"Besides their rivalry with Taylor, they've actually got lots in common – they've read the same books, and love the same music. Katy actually bought Adam this old, rare Elvis Presley record worth around ,000 – he was really flattered," the insider added.

"She thinks he's really handsome and talented. And he seems to be really into her," the source shared.

The Red singer and Perry were best friends for a long time before things got bad between the two. In an interview with Rolling Stone magazine, Swift revealed that the song Bad Blood from 1989, is about a former friend. The two apparently fought over backup dancers.

Perry took a dig at Swift during the 2015 Super Bowl half-time show, which took place on 1 February at the University of Phoenix Stadium in Arizona. During the performance, the Rise singer's backup dancers wore high-waist polka dot bikinis, something similar to what Swift had worn while holidaying with Conor Kennedy on the shores of Hyannis Port, Massachusetts in 2012.

In 2016, the 32-year-old singer said she will collaborate with the Bad Blood hitmaker if she apologises. While answering questions during a Twitter Q&A session, Perry's fan asked: "will you collab with Taylor swift?"

Perry replied: "if she says sorry, sure!"