'It's fun, I'm not gonna lie!': A radiant Mariah Carey dishes on her new relationship with billionaire James Packer during NYC party 

Mariah Carey has dished on her new relationship with billionaire beau, James Packer, coyly saying 'It's fun, I'm not gonna lie.'

The 45-year-old singer made the comment during the Harper’s Bazaar Icons issue party at The Plaza Hotel in New York on Wednesday, where she stepped out solo.

'He's not joining me inside tonight,' she told Entertainment Tonight. 'But we were together last night, so that was fun.'

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Mooning over her new man: Mariah Carey dished about her billionaire beau James Packer at the party to celebrate Harper's Bazaar's Icons issue  at The Plaza Hotel in New York on Wednesday

Mooning over her new man: Mariah Carey dished about her billionaire beau James Packer at the party to celebrate Harper's Bazaar's Icons issue  at The Plaza Hotel in New York on Wednesday

Show your star quality in a Valentino dress like Mariah's

She's a true superstar, so it was only a matter of time before Mariah Carey wore her very own version of this Valentino dress.

It hails from the Pre-Fall 2015 collection and we love the planets, stars and crescent moon print. Move over hearts (the much-hyped print of the last few years) and make way for the real star of this season, we say! Stella McCartney, Dolce & Gabbana, Tommy Hilfiger and Saint Laurent are all in agreement that celestial-inspired prints are the future, but luckily for our bank balance the high street is starting to follow suit with constellation prints aplenty.

Mariah's exact dress isn't available to buy (hers looks like it was altered to show off some cleavage!), but add a bit of galactic glamour to your wardrobe with this similar gown from MyTheresa (click right).

Or check out the superstar styles we've got lined up for you in the edit below. French Connection, Missguided and Sister Jane at Topshop have all got some Valentino-esque options to help you make like Mariah!

* PRICES MAY NOT BE AS ADVERTISED
Twinkling star: Mariah was out solo for the Icons party. 'He's not joining me inside tonight,' she told Entertainment Tonight. 'But we were together last night, so that was fun'
Twinkling star: Mariah was out solo for the Icons party. 'He's not joining me inside tonight,' she told Entertainment Tonight. 'But we were together last night, so that was fun'

Twinkling star: The 45-year-old was out solo for the Icons party. 'He's not joining me inside tonight,' she told Entertainment Tonight. 'But we were together last night, so that was fun'

The superstar started dating the Australian businessman during the summer and the pair enjoyed a luxury vacation on his mega-yacht.

Mariah split from estranged husband Nick Cannon in summer 2014 after six years of marriage and it has been claimed that she and James, 48, are eager to tie the knot.

A source previously said: 'James wants to marry her sooner rather than later, and she is very open to the idea.'

Public display of affection: The chart topper and her new love enjoyed an extended break together over the summer. Here they are seen hand in hand in Portofino, Italy, in June

Public display of affection: The chart topper and her new love enjoyed an extended break together over the summer. Here they are seen hand in hand in Portofino, Italy, in June

Very close already: Mariah and James with a friend on his yacht earlier this year

Very close already: Mariah and James with a friend on his yacht earlier this year

The couple are said to have already discussed having a child together, as Mariah, who has four-year-old twins Moroccan and Monroe with Nick, wants to have a baby with James, who has three children from previous relationships.

Another insider said: 'Mariah feels that having a child with James would be a blessing from God. She wants another child and is telling friends she's not too old.'

Meanwhile, Mariah dressed up as another famous diva, Marie Antoinette, for legendary photographer Jean-Paul Goude in the Harper's Bazaar Icons issue.

Having a swinging time: 'It's always fun to throw on a costume' Mariah said of her Harper's Bazaar photoshoot which depicted her as Marie Antoinette

Having a swinging time: 'It's always fun to throw on a costume' Mariah said of her Harper's Bazaar photoshoot which depicted her as Marie Antoinette

'I’m pretty much the opposite of Marie Antoinette, but it’s always fun to throw on a costume,' Mariah told the magazine for their September spread.

And on Wednesday she told ET her personal icons included 'Aretha Franklin, Diana Ross - I mean there's too many people to name.'

She added: 'My favorite person of all time is Marilyn Monroe,' saying she named her daughter after the Some Like It Hot star.

However, Maria laughed off the idea that any young divas could portray her in a similar capacity. 'No up and comers portraying me,' she insisted to ET. 'I'll have to portray myself no matter what.'

A mommy too: Carey with four-year-old twins Moroccan and Monroe on September 7 in Malibu

A mommy too: Carey with four-year-old twins Moroccan and Monroe on September 7 in Malibu

 

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