Her toyboy ex Bryan Tanaka was reportedly jealous over her close relationship with her former flame Nick Cannon.
The amicable exes were both in high spirits as they indulged in each other’s company at the swanky eatery.
Mariah – who is said to be worth $550 million – couldn’t help but flaunt her ample assets in a saucy plunging garment, which hugged onto every inch of her sensational curves.
The We Belong Together songstress opted for full glam with curly teased tresses, large gold hoops and immaculately chiselled features.
Nick also looked trendy in a black biker jacket and bright red turban as he hopped into an awaiting vehicle with his ex.
The day before, the twosome made it a family affair as they took their adorable twins to hotspot eatery Mr Chow in Beverly Hills.
Mariah showed off her hourglass curves in a Gothic-inspired black and a leather jacket while Nick put on a suave display in a burgundy display, top hat and studded loafers.
MailOnline has contacted both stars’ spokespeople for comment.
Their show of family unity comes as Mariah and backing dancer Bryan Tanaka reportedly split over his issues with jealousy and her tiring of funding his lavish shopping sprees.