Superstar DJ Calvin Harris has pulled out of tomorrow night's MTV awards.

The performer has said he is too ill to appear at the huge Hydro event tomorrow night.

He tweeted: "No EMAs for me this weekend. Got some heart problems. Heading home to see if it can be fixed."

Due to Calvin pulling out of the music awards John Newman is now understood to be no longer performing at the event either.

A spokesperson for the event organisers said: "It's with deep regret that Calvin Harris will not be able to perform at the 2014 MTV EMA this weekend due to illness.

"He sends his sincere apologies to all his fans."