Mariah Carey moved in with billionaire boyfriend James Packer a week after her Halloween soiree, according to TMZ.

The "All I Want For Christmas" pop singer moved into the Australian billionaire's Beverly Hills home after dating for five months, reported the Daily Mail.

Carey, 45, and Packer, 48, are discussing marriage, noted Yahoo! Entertainment. The blonde beauty boxed up her belongings and brought her 4-year-old twins Moroccan and Monroe to live with her at her beau's California mansion.

Prior to the move, the "Hero" hitmaker was renting a house five minutes from Packer's, reported The YBF. Carey is separated from her husband, Nick Cannon, 35, with whom she had the twins. A week earlier the pair were photographed with their children at Carey's Halloween party.

 "It was cool. It was nice. It was really good for the kids," Carey said about her Halloween family gathering. The pop singer had an amicable separation from Cannon.

Cannon is starring in Spike Lee's latest film "Chi-raq." The star-studded film features Samuel L. Jackson, Angela Bassett, Wesley Snipes, Jennifer Hudson, John Cusack and Teyonah Parris.

The celebrity couple split up last summer after six years of marriage. Packer intends to marry Carey once her divorce is finalized and the singer is open to the idea of marriage, according to Yahoo! Entertainment.

Packer is twice divorced and has three children from previous relationships. Carey is open to having another child with her boyfriend, according to Yahoo! Entertainment.