Mariah Carey is leaning on her back up dancer following her split from James Packer.

Mariah Carey and James Packer

Mariah Carey and James Packer

The 'Without You' hitmaker and her billionaire boyfriend haven't met up yet following a fight in Greece but she has turned to her dancer Bryan Tanaka for support.

A source told E! News: "While in Vegas, she turned to and developed a close relationship with Bryan Tanaka."

Meanwhile, Mariah and James are trying to work on their relationship but they are not sure whether they will stay together.

A statement released by Mariah's spokesperson on Thursday (27.10.16) read: "Mariah and James had a fight in Greece, and have not seen each other since. [The fight was not due to] any cheating allegations or excessive spending. They are trying to work it out. Right now, they're not sure if they will stay together. They are discussing it."

The pair reportedly fell out over Mariah's obsession with her reality television show 'Mariah's World'.

A source said: "It's all over. James had huge reservations about Mariah's new reality TV show and the fact that she was willing to expose their lives to the world ... James is very generous, but Mariah takes it to the next level."

And James was said to be fuming when Mariah didn't attend a birthday party for his sister.

The insider added: "When she refused to come to Australia for [Packer's sister's] birthday party it created a lot of tension in the family. James' tight circle of friends never really thought they would marry."

Meanwhile, Mariah - who has five-year-old twins Moroccan and Monroe with her ex-husband Nick Cannon - previously gushed about James.

She shared: "He's a great person. He's just an incredible guy. He really is a good person, and that's hard to find.

"I think anybody that's a friend of his would say the same thing, if not more, so I can't say enough nice things about him. He's just a spectacular guy."