The video, taken by Blake Fielder-Civil sometime before his arrest late last year and published Sunday by the News of the World, shows Winehouse and another woman sitting on a couch, singing a string of racial epithets to the tune of the children's song "Head, Shoulders, Knees and Toes."
Fielder-Civil, holding the camera, is heard encouraging them to sing it, insisting afterward he "wasn't recording it ... I swear on my life." The video goes on to show Winehouse passed out on the couch.
Fielder-Civil, 26, was being tried in London on charges of attacking pub landlord James King, and then conspiring with King to have the landlord withdraw as a witness.
Fielder-Civil and three co-defendants pleaded guilty last week, but a court order barred reporting the pleas because King is scheduled to face a separate trial. Judge David Radford lifted the reporting restriction Monday.
Winehouse has become an international star since she released the Grammy-winning album "Back to Black" in 2006. But her music has been overshadowed by reports of her drug use, run-ins with the law and tempestuous relationship with Fielder-Civil.
Winehouse's spokesman did not immediately respond to a request for comment Monday from The Associated Press.
The defendants are to be sentenced at a later date.