Amy Winehouse was forced to leave the stage after just one song at London's G-A-Y club because she had to be sick.

Despite claims of food poisoning The Mirror reported that the singer had to run off stage in order to throw up because of an all day drinking session with Kelly Osbourne.

After Winehouse's untimely exit, her embarrassed band played on their own for ten minutes before realising that their singer was not returning.

One crowd member told The Mirror, "Everybody started booing, heckling and stamping their feet when they heard she wasn't returning to the stage.

"The crowd at G-A-Y is normally really up for it and friendly, but I've never seen them so angry before. To make matters worse everybody had been waiting until 1.45 am for her to eventually come on."

A source backstage reported, "Everyone knew something was up as soon as she arrived smelling of booze and quite unsteady on her feet."