Mariah Carey and Billionaire Boyfriend James Packer Step Out for Their Red Carpet Debut

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Mariah Carey is stepping out with her new man!

The singer made her red carpet debut with her new beau, Australian billionaire James Packer, at Monday’s night’s New York premiere of The Intern.

"They were really cute together!" an eyewitness told ET, adding that the couple "seemed very happy."

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"James was leading Mariah through the theatre room and had his hand on her back. Mariah looked very proud to be there with James," the eyewitness told ET of the couple's outing. "He seemed a little more under the radar than she is but looked at her very adoringly and happy."

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"It’s fun," Carey told ET of the date night, adding that the couple are big fans of Anne Hathaway, who stars with Robert De Niro in the Nancy Meyers film. "We love her. [She’s] the best."

The feeling is mutual, ET’s Carly Steel explained to Carey, telling her that the actress had a toy named after the singer's Charmbracelet album when she was younger.

"Oh my, that is too cute," the singer marveled. "Come on, we love her."

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The couple seemed to have a great time at Monday’s premiere, echoing Carey’s sentiments at the Harper’s Bazaar ICONS party last week. "It’s fun, I’m not gonna lie," she told ET of the new relationship.

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