Lily Allen cried on stage at her London's O2 Arena gig last night when a fight allegedly broke out in the crowd (March 7th).

The 24-year-old star exited the stage for two minutes after a punch-up erupted between two audience members and only returned when security had removed them.

According to The Sun, she told the sell-out crowd: "That's the worst sort of violence. It's f*cking sick and you lot should be ashamed of yourself."

Lily also had a dig at Conservative leader David Cameron after he said in an interview last month that he wouldn't let his daughter listen to Allen's music.

Shortly before launching into 'F*ck You', she said: "I'd like to dedicate this next song to someone. David Cameron."

(by Scott Colothan)