Mariah Carey's billionaire fiance James Packer 'was jealous of backup dancer' as it's revealed couple haven't seen each other in a month amid increasingly messy split

James Packer was 'jealous' of Mariah Carey's backup dancer and choreographer Bryan Tanaka, a new report claims in the wake of the news of the celebrity couple's dramatic split. TMZ claimed Thursday night that 'sources connected with Mariah' had revealed the tension between the Australian billionaire and Tanaka that led to a showdown last June. The website claims that following a loud argument between the two men, 'Packer used his casino ties to get Tanaka banned from Caesar's Palace', where the songstress has a residency.