Mariah Carey has a close relationship with her hunky dancer Brian Tanaka and it's rumoured to have caused a problem with her fiance James Packer.

The billionaire is said not to have approved of Mariah's friendship with the hunky dancer, who has shared many pictures alongside the star in recent weeks, describing her as a “beautiful person”, while travelling around on her private jet.

TMZ have reported that Packer and Tanaka had a heated exchange in June during one of Mariah's Las Vegas shows at Caesar's Palace.

It's claimed that a picture was circulated of Tanaka banning him from several casinos.

Tanaka is one of Mariah's favoured dancers, even appearing alongside her in Complex magazine this year, and he's not far from her side in backstage photos with celebrity guests.

Earlier today, it was reported that Mariah and the Australian businessman are "trying" to work things out.

The couple are currently taking a break from their relationship after having a fight in Greece and are now "discussing" if they'll get back together.

Her representative said in a statement: "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."

Meanwhile, it was previously claimed that James ended their relationship after Mariah became obsessed with her reality television show 'Mariah's World'.

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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 things are said to have only got worse when Mariah didn't attend a birthday party for James' 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."

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And Mariah previously revealed she was taking her time to tell her five-year-old twins Moroccan and Monroe about her engagement as she wants them to understand that she will still be their mother first and foremost.

She shared: "I haven't talked to them about it completely because they are so young - they don't really understand things yet.

"You have to go slowly and explain things and always make sure they know that this is only going to be good for them. Their lives aren't going to change."