But could he become her new husband soon?!
The 'Hero' singer confirmed her romance wit James last week when they held hands in front of photographers while holidaying on the island of Capri.
And now TMZ reports the duo are so besotted they have even been using the M word. Sources told the website James loves Mariah and wants to marry her once she's officially divorced from Nick.
So far, neither Mariah nor James have commented so we'll take it with a pinch of salt for now.
According to People magazine, the relationship has been brewing over the past couple of months but only now is it becoming public knowledge. It's thought Mariah and James have known each other for a while but romance only really started recently.
Mariah's kids, twins Monroe and Moroccan, are also in Italy with them and have been hanging out with James.
James, 47, is the businessman son of an Australia media mogul. Last year, his net work was estimated at around $4.7 billion. Wow. He has three children with ex-wife Erica Baxter
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