Calvin Harris slams Taylor Swift in Twitter rant over hit song

Calvin Harris is taking aim at his ex-girlfriend Taylor Swift on Twitter over his hit song "This Is What You Came For."

According to TMZ, the Rihanna-assisted track is actually the brainchild of Swift. She wrote it and sent Harris a demo. He created the beat with Swift doing vocals in the studio.

The ex-couple agreed to use the pseudonym “Nils Sjoberg” for Swift on the song credits, so that the collaboration would not overshadow the music.

The song became a hit and Harris appeared on On Air With Ryan Seacrest where he was asked if he would collaborate with Swift.

“I can’t see it happening” Harris told Seacrest. Swift disliked his response and the relationship began to disintegrate.

Harris took to Twitter slamming the pop star, even saying he won’t allow Swift to bury him like she did nemesis Katy Perry.

"This Is What You Came For" is the highest position Harris has reached on Billboard Hot 100, peaking at No. 4.