Despite cancelling her remaining UK tour dates at the end of last month, Amy Winehouse performed a impromptu, surprise gig in London on Wednesday night during a six hour drinking session with friends.

After starting the evening at the Garlic & Shots bar in Soho, Amy took to the stage at the nearby Jazz After Dark club shortly after midnight.

Club owner Sam Shaker told the Mirror: “She jumped on to the stage and started singing two new songs. Everyone was open-mouthed in amazement - she was sensational.”

Performing made the star peckish though: “We reopened the kitchen especially for her as she said she was starving and wanted loads of calamari and tuna mayonnaise salad.”

After she’d eaten, she went onto nearby Balans restaurant where she stayed until 5am, with an onlooker reporting she was “in very chatty mood and was roaring with laughter all night.”

However, there may have been a reason for her good mood - when she left the restaurant at 5am, she was spotted with white powder caked around her nostrils.