Calvin Harris has admitted he isn't quite sure how to deal with Rihanna on Twitter.

The Scottish DJ, who teamed up with Rihanna on her smash hit 'We Found Love', often receives tweets from the Bajan superstar.

Rihanna recently tweeted that Harris was one of the "most talented" people around, saying: "Calvin Harris is eaZily 1 of the most talented muthaf**kers! And by far THE MOST HUMBLE person I work with..."

However, speaking to the Big Top 40, Harris has admitted that sometimes he's scared to reply to her in case his response isn't good enough. When asked about how long he takes to reply to Rihanna, Harris said:

"It depends what it is. Sometimes I can't bring myself to respond because no response would be good enough and sometimes I just pretend I haven't seen it."