Singer Amy Winehouse has admitted she is a nasty drunk after confessing to hitting a woman fan at one of her gigs.

The 23-year-old lashed out at the Proud Gallery in London.

She said: "This girl came up to me and said I was brilliant. Two seconds later, she turned to my boyfriend, pointed at me and said, 'She f***** up'.

"So I punched her right in the face - which she wasn't expecting, because girls don't do that."

Amy then added that she kneed her boyfriend between the legs and punched him in the face when he tried to calm her down.

"When I've been on the booze recently, it's turned me into a really nasty drunk," she said.

But she also says that all the boozing has helped her shed the pounds.

"I drink a lot and sometimes forget to eat," she said.

Ref: Daily Mail