10/28/2016 5:54 AM PDT BY TMZ STAFF
Mariah Carey showed James Packer who’s boss Thursday night by chowing down with the guy who made her ex-fiance crazy.
Mariah sushied out at Nobu in Malibu with Bryan Tanaka, the backup dancer who got super flirty with her … so much so Packer had it out with him in Mariah’s dressing room and then got Tanaka banned from Caesar’s Palace, where MC performs.
As we reported … Mariah and James had a nuclear breakup … she claims after he did something terrible to her assistant last month on a yacht in Greece.