Mariah Carey is to marry on an exclusive Caribbean island.

Mariah Carey

Mariah Carey

The 'Hero' hitmaker will reportedly tie the knot with James Packer in front of just 50 guests on Barbuda - where the billionaire businessman is currently building a private $250 million resort with Robert De Niro - at some point this summer.

According to TMZ, the wedding is likely to take place sometime after mid-June, though no date has been set yet.

Friends will be flown into the exclusive setting via private jet,

though they haven't issued any invitations for the big day yet.

Mariah - who was previously married to record company boss Tommy Motola and 'America's Got Talent' host Nick Cannon - recently admitted she will be having a "grand" wedding.

She said: "I'm most excited about the grandeur, darling.

"It's not gonna be a big wedding. But it's going to be grand.

"I think the most important thing is the relationship and, you know, just the connection. The love it of all. That's the most important thing, but of course I love a grand moment."

The 45-year-old singer - who has four-year-old twins Moroccan and Monroe with Nick - has kept details of James' proposal under wraps but admitted she was "surprised" when he popped the question.

She said: "Darling, it's my engagement ring, we can't know when it's coming.

"We just have to receive it."

And Mariah adores her stunning 35-carat diamond and platinum ring.

She joked: "Walking through a crowd with a ring on your finger and a lot of bracelets is a little bit, you know, daunting.

"But it's hard to take it off cause I love it so much."