Amy Winehouse accidentally mooned fellow diners at London’s Cottons restaurant recently when she turned up for a meal drunk.

An onlooker revealed: “It was 7pm but she was totally out of it.”

“She went to the loo and when she came back her trousers weren’t done up properly, you could see her bottom. Then she was walking to the bar and fell flat on her face.”

“In the end, a member of staff carried her out but she forgot to pay her bill.”

Amy’s spokesperson insists the bill was paid in full the following day.

Amy has previously admitted to struggling with alcoholism in the past and has been threatened with rehab by her record label.