US singer Katy Perry has become embroiled in a war of words with DJ Calvin Harris after he announced that he was pulling out of some of her shows.
Calvin Harris had been billed to take part in the Katy Perry UK tour however, according to reports, he said that he would not be taking part, leaving Katy in the lurch at the last minute.

Katy Perry took to twitter to vent her anger at the decision of the DJ tweeting: “Calvin Harris will NOT be joining the fun and has CANCELLED last minute.”
This was swiftly followed by a response from Calvin, also via twitter who retorted: “Sorry to all who wanted to see me with Katy – her team suddenly moved the goalposts and I was to appear on stage with no production.”

The war of the tweets then continued as the I Kissed A Girl star said: “The goalposts seems to be perfectly fine for New Young Pony Club, Yelle, Robyn, Marina & The Diamonds, to name a few.”

She added: “Or how bout Janell Monae and her 16 piece band...Its fine, I'm used to you cancelling on me, it's become ur staple!”
Calvin Harris then tried to seemingly explain his actions to the angry singer: “It would have looked s***, sounded s***- trust me you would have been more disappointed SEEING the show than u are with me cancelling.”

The two then appeared to make friends with the DJ then complimenting the singer, however Katy Perry fans did not let the incident pass without lashing out at Calvin Harris and reportedly sending him death threats.

Calvin later tweeted: “WTF are Katy Perry fans telling me to KILL MYSELF on twitter for? Seriously. I'm a producer making music. Leave me alone please thanks x.”