“So the guy comes up to Rosie O‘Donnell and goes ... It was only at that point that they realized he thought O’Donnell was Roseanne Barr, who put out a stand-up special called Cancel ...

Then Barr attempts to start beef with a real rapper, by saying, "Screw Eminem, I'm Roseanne." She also flips off the camera and at one point shakes her butt at it. Related: Kathy Griffin recalls ...