The Back To Black star, 27, was booed and heckled by a furious 20,000 crowd as she slurred her way through the 70-minute show.
ANA ZOE KIDA, whose band ZEMLJA GRUVA shared the bill, said: "Four British bodyguards simply pushed her to step up on stage.
"She did not want to and was making a scene trying to escape them.
"It was distressing to see, she obviously needed help."
The Sun revealed management were baffled how Amy got sozzled so quickly as she arrived at Saturday's Belgrade gig sober and booze was banned at her city hotel.
Amy's spokesman said yesterday: "Amy Winehouse is withdrawing from all scheduled performances. Everyone involved wishes to do everything they can to help her return to her best and she will be given as long as it takes for this to happen."
But he denied Zoe's claims that Amy was pushed on stage and said she voluntarily walked on with a friend.
http://www.thesun.co...ed-onstage.html
