AceShowbiz - Rapper and actor Ludacris lost his cool at a show in New Jersey on Saturday night, June 30, after a fan hurled a plastic cup full of booze at him.
The star was in the middle of his set at the grand opening of the Hard Rock Hotel & Casino in Atlantic City when he was hit by the drink - and went ballistic.
Cutting the music, he ordered the beer thrower to identify himself, offering to "come down there and whoop your motherf**king a**!"
As it became clear no one was going to own up to throwing the cup at the rap star, he continued with his show and there was no further incident.
A gig goer tells WENN, "Luda was p**sed and seemed happy to step off the stage and challenge the fan who threw the cup at him."