Lily Allen has been arrested after allegedly assaulting a photographer outside of a London nightclub.

The 22-year-old singer attended a police station in central London by appointment.

She was released on police bail after being questioned over an alleged assault on a male in his 40s near the Wardour club in London's Soho on March 13.

Scotland Yard said: "At 9.30am yesterday, a 21-year-old woman attended a central London police station by appointment.

"She was arrested in connection with an allegation of assault. She has been bailed to return on a date in late July."

Above is a live performance of Allen's hit "Knock 'Em Out." It seems fitting.