Kate Moss wildly wobbly at YSL bash in Paris

Kate Moss was apparently wildly unstable at the Yves Saint Laurent runway show after-party in Paris this week and had to be helped up several times.

Witnesses said the supermodel showed up late for the YSL bash at Le Trianon on Monday.

She appeared unsteady as she walked up to the front of the room near the stage, where a rock band performed.

"She danced so hard that she had to be helped up several times by security. She went a little crazy," the New York Post quoted a witness as saying.