The funnywoman, 54, and TRUE LIES actor, 47, divorced in 1994 after a rocky four year marriage.
During his live appearance from New Orleans, Louisiana, Arnold pleaded with Barr for a truce after years of criticising each other in pubic.
When Barr took the stage in Las Vegas, she said, I don't think we should hang SADDAM HUSSEIN.
That's too good for the bastard.
I think he should have to marry Tom Arnold.
