Her ex-fiance James Packer branded their relationship a ‘mistake in a no holds barred interview last week.

But Mariah Carey bounced back from her former love’s revelations as she flaunted her dramatically slimmer frame at Karl Lagerfeld’s V Magazine’s dinner in NYC on Monday, as well as the $10m engagement ring he gave her.

The 47-year-old vocal powerhouse slipped her toned curves into a skintight glittery black dress, which highlighted her taut midriff and tiny waist as she strutted to the event at The Top of the Standard.

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Busty: Mariah Carey bounced back from ex fiance James Packer’s revelations as she flaunted her dramatically slimmer frame at Karl Lagerfeld’s V Magazine’s dinner in NYC on Monday, as well as the $10m engagement ring he gave her (pictured on the middle finger of Mariah’s right hand)

Wow factor:The 47-year-old vocal powerhouse slipped her toned curves into a skintight glittery black dress, which highlighted her taut midriff and tiny waist as she strutted to the event at The Top of the Standard in New York City on Monday

Making no efforts to hide her continued efforts to wear the ring, Mariah slipped the mammoth 30-carat diamond ring onto the middle finger of her right hand, where it caught the light among her many other glittering accessories.

Mail Online has contacted representatives for Mariah for comment.

Clearly oozing confidence on the night, the Touch My Body hitmaker put on an incredibly busty display thanks to the garment’s perilously plunging neckline, which revealed her gravity-defying cleavage.

The dress was cinched in at Mariah’s slender waist with a diamond flower belt.

Mammoth: Making no efforts to hide her continued efforts to wear the ring, Mariah slipped the mammoth 30-carat diamond ring onto the middle finger of her right hand, where it caught the light among her many other glittering accessories (pictured right wearing the ring in February 2016)

The stunning gown also featured a racy split skirt, which flashed the star’s toned legs and vertiginous platform sparkly sandals.

Looking the epitome of glamour on the night, Mariah wore her waist-lenth caramel locks in romantic, tousled waves while her sparkling peepers were enhanced with fluttery lashes and pink metallic eyeshadow.

Opting for a light dusting of rouge and highlighter on her cheekbones, the Hero singer finished her look with a touch of candy pink gloss.

Ample assets: Clearly oozing confidence on the night, the Touch My Body hitmaker, 47,  put on an incredibly busty display thanks to the garment’s perilously plunging neckline, which revealed her gravity-defying cleavage

Lithe: The vocal powerhouse slipped her toned curves into a skintight glittery black dress, which highlighted her taut midriff and tiny waist as she strutted along

Glamour; Mariah cracked a beaming smile as she held onto the hand of her bodyguard

Happy couple: The star brought her toyboy beau Bryan Tanaka, 34, to the star-studded event, with the singer seen holding hands and smiling as she stepped out with her man

Tottering: The stunning gown also featured a racy split skirt, which flashed the star’s toned legs and trimmer frame since stepping out in Paris in June (right)

Her accessories were typically sparkling with diamond bangles, white gold hoop earrings and a silver manicure accenting her look.

The star brought her toyboy beau Bryan Tanaka, 34, to the star-studded event, with the singer seen holding hands and smiling as she stepped out with her man.

Complementing Mariah’s look, Bryan rocked a black patterned sweater which showed off his muscular frame paired with dark jeans and boots.

Pals: Mariah posed up with a suave French Montana who was clad in a navy blue coat

Chic: Mariah wowed in her glittery gown as she chatted with French at the event

Chivalrous: Bryan appeared to have given Mariah his coat as they left the event

Main attraction: Mariah wowed as she prepared to perform on-stage at the event

Sizzling: The star couldn’t resist a glamorous shot backstage before her show

The star posed up with the man of the hour Mr Lagerfeld, who wore his trademark sunglasses even indoors and at night before she took to the stage for a performance.

Also at the event was Naomi Campbell, who stole a portrait with the singing sensation.

Naomi, 47, looked effortlessly chic with her brunette tresses styled sleek and straight while she rocked a metallic detail strappy gown.

Splendid: The star posed up with the man of the hour Mr Lagerfeld, who wore his trademark sunglasses even indoors and at night at the event in penthouse lounge The Top of the Standard

Gorgeous duo: Also at the event was Naomi Campbell, who stole a portrait with the singing sensation

Tune up: The Star songstress wore a striped black dress decorated with black sequins as she hit the stage to belt out some of her hits

What a treat: The powerful vocalist delivered in front of the intimate crowd

Gigi Hadid, her sister Bella and mother Yolanda, also attended the event

The Star songstress wore a striped black dress decorated with black sequins as she hit the stage to belt out some of her hits.

The mother-of-two cinched in her waist with a silver chain belt and kept warm with a satin coat.

The gorgeous diva wore her long, honey-colored hair down and in loose waves. For make-up, Mariah stayed true to her go-to, glamorous look with a smokey eye and soft brown lip.

Work it! Bella, 21, and Gigi Hadid, 22, kept up appearances with their former model mother Yolanda Foster at the party

Time to pose with the momager: Kris Jenner got a snap with Joan Smalls and the Hadid girls

Inside edition: The trio posed for a snap while taking a break on a sofa

Glam: Mariah stepped out in an eye-popping outfit as she headed to the venue

Couples’ time: Mariah and Bryan interlocked hands as they stepped out at the event

Relaxed: Bryan matched Mariah in a black ensemble as they strolled along

Glitter: The Star songstress glittered from head-to-toe in her dress and accessories

Billionaire James spoke about his former love of a year-and-a-half during an interview withThe Australian this month

‘She was kind, exciting and fun. Mariah is a woman of substance. She is very bright. But it was a mistake for her and a mistake for me,’ he noted.

He said he met the songstress at a ‘low point’ in his life when debt within his empire was escalating and when he was looking for a way to spend more time in Los Angeles to be close to his children with second wife Erica.

Packer, now 50, said he was also under strain from a painstaking negotiation process with his estranged sister Gretel over how they would divvy up and invest money they had been left by their late father Kerry.