Doherty confronted by Amy's father

Rex Features

Amy Winehouse's father confronted Pete Doherty when he spotted the Babyshambles frontman backstage at one of his daughter's gigs.

Things got heated at Amy's concert in Brixton, South London, last week when Mitch Winehouse warned Doherty to stay away from the 'Rehab' singer and hit him with a guitar.

An onlooker told The Sun: "He told him to leave Amy alone, saying that he was the last person she needs at moment. Pete was smirking until Mitch turned and whacked him."

Winehouse has since cancelled her 2007 tour dates. She is planning to spend Christmas in Miami with her friends.