Chris Brown and Jamie Foxx turned Malibu’s fanciest sushi restaurant into a Vegas nightclub — grabbing the mic for an impromptu version of “Gold Digger” … and the crowd went nuts!

Jamie and Breezy jumped on a stage at the famous Nobu in Malibu … and did a bunch of hits for a Saturday night party. 

Tyga was there too and dropped “Rack City” on the packed restaurant.

Imagine ordering that night — l’ll have the yellowfin tuna, a California roll, wasabi beans and for dessert … 3 superstars on stage.

Gotta love life in the ‘Bu.