Calvin Harris is calling out his ex-girlfriend Taylor Swift on Twitter after rumors surfaced she was responsible for his hit song "This Is What You Came For."

According to TMZ, the couple split after the British musician said he would never collaborate with the "Blank Space" singer in an interview.

While Calvin, 32, does not deny that the 26-year-old wrote the lyrics, he did go on a rant on social media blaming her for the gossip, bringing up her feud with Katy Perry and her new boyfriend Tom Hiddleston!

Click through the slideshow to see what the Calvin revealed about his ex!