Following their red carpet debut [1], Mariah Carey [2] and James Packer were spotted leaving dinner at Nobu restaurant in NYC on Thursday night. Mariah looked positively radiant — she smiled from ear to ear while walking alongside her billionaire boyfriend [3]. The pop star, who spent the Summer vacationing with her family [4], has been all over our radar recently. Earlier this month, she stunned in all black at the Harper's Bazaar Icons event [5] during New York Fashion Week, and in August, she received a star on the Hollywood Walk of Fame [6], where her two children ended up stealing the show. Keep reading to see more photos from the couple's latest outing.