Celebrity News July 05, 2015 Mariah Carey Spends 4th of July with Her Billionaire Boo This Fourth of July weekend was special for Mariah Carey... it was the first holiday she celebrated with her billionaire boyfriend, James Packer. As a bonus, she was finally able to get James to hang out with her in Las Vegas, where she's currently belting 'em out during a residency at Caesars Palace. TMZ caught up with the lovebirds, spotting Mariah and James getting close on the rooftop of the Mirage Villas, which James had rented out entirely for their entourage. It's good to be Mariah! #MariahCarey More Mariah Carey & Nick Cannon’s Friendly Relationship… Will They Reunite? Mariah Carey Reveals Meaning Behind 'Infinity' Lyrics, and Talks Brett Ratner Rumors Is Mariah Carey Already Talking Marriage with Billionaire Boyfriend?! Is Mariah Carey Dating a Billionaire?