Fans angered as Winehouse dashes off stage to vomit

English singer Amy Winehouse shocked the audience at a London gig on Saturday - when she ran offstage mid-performance to be sick.

The Rehab star played just one song at club night G.A.Y at the city's Astoria venue before she clutched her stomach and swiftly left the stage.

According to today's British tabloids, Winehouse had spent the day drinking with her friend Kelly Osbourne.

One audience member told The Sun newspaper: "The organiser came out and said Amy was throwing up and to bear with her.

"But she never came back. Everyone was booing."