N-dubz star Dappy has apologised after sending death threats to a Radio 1 listener after she called the show to say he was a “looser” and “repulsive”.

Chloe Moody texted into the Chris Moyles show to express her dislike to the band and Dappy when they were being interviewed by Chris Moyles.

The next day she received a message from the rapper Dappy saying: “Your Gonna Die”.

Dappy real name Dino Contostavlos (or shall we call him Dummy ?) took down Ms Moody’s number without the producers’ knowledge and begun to send threatening message to her.

Ms Moody was shocked to find out that the messages were coming from Dummy, after he then sent another message saying: “U sent a very bad msg towards Ndubz on The Chris Moyels Show yesterday Morning and for that reason u will never be left alone!!! If u say sorry I will leave you alone.”

Ms Moody then started to receive phone calls from Dummy, she eventually answered his call and faced further insults.

“He was just ranting, saying ‘why are you saying this about me?’. If I had had a number one single and got a message from a nobody to a radio station I would not be too concerned. It obviously hit a nerve.”

What a prize idiot – ironically Dummy joined Schools Secretary Ed Balls to launch a Government campaign against “cyber-bullying” over mobile phones and the internet. (you can’t help but laugh.)

As a result of the incident, N-Dubz have been dropped as ambassadors of anti-bullying charity Beatbullying.

In a statement, Dappy – real name Dino Contostavlos – said: “I called her in the heat of the moment when I was angry, but that is no excuse for my behaviour.

“I’m genuinely sorry. I’d also like to send my sincerest apologies to Radio 1.”

A BBC spokeswoman said: “He must have taken the number down from the production team’s text console in the studio.

“We were unaware of this, but will take steps to ensure it doesn’t happen again.”