Piers Morgan has hit back at Charlotte Church after she called him a "pr*ck".

The 28-year-old singer recently told Stylist magazine that she interviewed the media personality at the Oxford Union when she was 17.

However, it seemed a sour event for Church, who said: "He was such a pr*ck. His argument basically centred around, 'You're rich, you're making money out of this, who the f**k are you to question it?'. I was like, 'I hate you!'. I wanted to storm out and it took all my strength not to, and in that talk he basically told me about phone hacking and everything.

"He didn't say it happened at the Daily Mirror but it was in the video I had made [of the talk]. I gave it to The Guardian because when it all came out he was like, 'I had nothing to do with it', but I was like, 'Well, I've got a f**king video of you telling me how to do it from way back!'."

Church won damages in 2012 from the publishers of the now defunct News of the World over phone hacking.

Morgan has since responded to Church's comments on Twitter, saying: "I actually enjoyed meeting you @charlottechurch - you just weren't the brightest bulb in the box. In fact, ANY box..."

The former Mirror editor meanwhile recently saw his US TV show axed after poor ratings.

Watch Charlotte Church perform live below: