Mariah Carey, Bryan Tanaka in proper relationship?

Pop star Mariah Carey is reportedly in a serious relationship with Bryan Tanaka now.

The 46-year-old singer and the backup dancer, who hooked up recently after Carey's split from billionaire James Packer, are already in a "proper relationship", reported Ace Showbiz.

"She's really into Bryan. He's with her 24/7. He's a nice guy. The fans can expect to see a lot more of the couple in the new year," a source said.

The pair, however, "weren't together when she broke up with James.