Mariah Carey shows off her curves in dress as she parties in NYC

She’s been performing to thousands every night this week as she takes to the stage with her All I Want For Christmas Is You show.

But Mariah Carey was finally able to relax on Saturday night, as she celebrated her last show by letting her hair down in NYC.

The 46-year-old confidently showed off her womanly curves in a figure-hugging frock as she headed out to party at Bagatelle NYC in the trendy Meatpacking District with her dancer boyfriend Bryan Tanaka, 33.

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Curvaceous: Mariah Carey, 46, showed off her sensational body in a tight-fitting dress on Saturday night as she partied in NYC after her last All I Want For Christmas Is You show

The Dreamlover songstress looked sensational in the charcoal bodycon frock, which saucily plunged at the chest to flash her famously ample cleavage.

Flattering her figure with a vertical seam on each side, the dress then cut off an eye watering height to leave her long legs on show – which were further elongated by a daring side slit.

Giving the look an edgier touch, the plunge and slit were then fastened with chunky paper clips, to allure further to her body beneath.

Fit to bust: The Dreamlover singer’s frock saucily plunged at the chest to flash her famously ample cleavage as she headed out with her new man Bryan Tanaka

She teamed the titillating number with black fishnet tights and a pair of sky-high black platform Louboutin heels, before finishing the look with her trademark set of oversized sunglasses.

Meanwhile her beau kept things more casual post-show in a simple jumper and jeans, teamed with chunky lace-up boots.

Carrying a bottle of champagne and rocking a winning smile, the dancer looked more than happy to be spending an evening with his new woman.

Feelin’ good: Carrying a bottle of champagne and rocking a winning smile, her dancer beau looked more than happy to be spending an evening with his new girl Mariah

Mariah’s lively dinner group at Bagatelle NYC also included Empire star Jussie Smollett, according to an article on Monday by E! News.

The pop superstar led the group in a sing-along of All I Want For Christmas Is You and tossed some of the four dozen red roses on the table to watchers.

Bryan appeared to be sitting to Mariah’s right as diners captured the festive moment on their cell phones.

Christmas tune: Mariah led a sing-along of All I Want For Christmas Is You at Bagatelle NYC

Right-hand man? Bryan appeared to be sitting just to the right of Mariah at the restaurant

Tossing roses: Mariah tossed roses as she belted out her Christmas song

While the pair have only been together for a few months, Mariah was recently seen on a date with Bryan rocking a mysterious diamond rock on her engagement finger – sparking speculation the pair are engaged.

However according to Woman’s Day the rock is the same one given to her by ex-fiancé James Packer, who she split with two months ago.

While marriage may not yet be on the cards for the new lovers, an insider close to the singer revealed Mariah was ready to move on to the next chapter of her life.

The source told Entertainment Tonight: ‘She’s ready to move on. Mariah’s chemistry with Bryan was subtle, but undeniable.’

Already? While they have only been together a few months, Mariah was recently seen rocking a mysterious diamond on her engagement finger – sparking speculation the pair are engaged

They continued: ‘It is the way they communicate. They seem so happy in each other’s presence. They are on the same page, their laughing and the glances between them.’

Mariah and Bryan first crossed paths ten years ago, when he was hired as a dancer on her Adventures of Mimi tour.

The pair have since been spotted on endless dates together, and were even seen packing on the PDA during a romantic break in Hawaii last month – just weeks after she split from Australian businessman James.

Firm friends: Mariah and Bryan first crossed paths ten years ago – and have since embarked on romance, with him even appearing on her new show Mariah’s World (above)

Discussing his blossoming relationship with the beauty to E! News, the dancer gushed: ‘I’ve always had a thing for Mariah. I love her so much.’

He further admitted that while they have only just embarked on romance, they have had a strong chemistry since their first meeting, explaining: ‘Something connected with us back in the day and there was just a mutual admiration.’

The romance comes after Mariah split from billionaire James in October, after a two-year relationship and nine-month engagement.

Prior to this Mariah has been married twice – to music industry exec Tommy Mottola from 1993 to 1998 and to Nick Cannon from 2008, until their August 2014 separation.