Bryan Tanaka, 34, can't keeps his hands off Mariah Carey, 47, as she takes to the stage in a number of racy ensembles for Christmas tour in Vegas

By Julia Pritchard for MailOnline

Published: 04:54 EST, 21 December 2017 | Updated: 06:42 EST, 21 December 2017

They have been dating since last October, following her split from billionaire fiancé James Packer.

And Mariah Carey and Bryan Tanaka looked more infatuated than ever on Wednesday as they packed on the PDA during her 'All I Want For Christmas Is You' show in Las Vegas.

The backup dancer, 34, could not keep his hands off the glamorously-clad singer, 47 - who slipped into a number of raunchy ensembles for her famous festive concert at Caesars Palace.

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Besotted: Mariah Carey and Bryan Tanaka looked more infatuated than ever on Wednesday as they packed on the PDA during her 'All I Want For Christmas Is You' show in Las Vegas

Besotted: Mariah Carey and Bryan Tanaka looked more infatuated than ever on Wednesday as they packed on the PDA during her 'All I Want For Christmas Is You' show in Las Vegas

Sizzling: The backup dancer, 34, could not keep his hands off the glamorously-clad singer, 47 - who slipped into a number of raunchy ensembles for her festive concert at Caesars Palace

Sizzling: The backup dancer, 34, could not keep his hands off the glamorously-clad singer, 47 - who slipped into a number of raunchy ensembles for her festive concert at Caesars Palace

The pair seemed completely besotted as they danced together during one of her many hits, with Bryan affectionately holding her by the hand and waist. 

It is no wonder the dancer could not take his eyes off Mariah, as she sizzled in a number of raunchy ensembles for her famous Christmas show. 

The Dreamlover hitmaker first took to the stage in a slinky velvet maxi dress, which plunged into a deep V at the chest to give a flash of her busty cleavage to all.

Helping hand: The pair seemed completely besotted onstage as they danced together, before Bryan hoisted her onto his shoulders to finish one of her many hits

Helping hand: The pair seemed completely besotted onstage as they danced together, before Bryan hoisted her onto his shoulders to finish one of her many hits

Stunning: It is no wonder the dancer could not take his eyes off Mariah, as she sizzled in a slinky velvet maxi dress, which plunged into a deep V at the chest to give a flash of cleavage

Stunning: It is no wonder the dancer could not take his eyes off Mariah, as she sizzled in a slinky velvet maxi dress, which plunged into a deep V at the chest to give a flash of cleavage

Hugging her famous curves, the dress then cut into a daring thigh-high split at the front, before extending into a long and glamorous train to the floor.

Not afraid to show off even more skin, Mariah later swapped the gown for a sequin military-style jacket and skimpy leotard - which cut off high at her thigh to leave her long legs on show.

Adding sky-high gold heels and styling her hair into big, bouncy waves, the singer was the picture of confidence as she strutted her stuff onstage. 

Leggy: Not afraid to show off more skin, Mariah later swapped the gown for a sequin military-style jacket and skimpy leotard - which cut off high at her thigh to leave her long legs on show

Leggy: Not afraid to show off more skin, Mariah later swapped the gown for a sequin military-style jacket and skimpy leotard - which cut off high at her thigh to leave her long legs on show

Red hot: Adding sky-high gold heels and styling her hair into big, bouncy waves, the singer was the picture of confidence as she strutted her stuff in another daring gown

Red hot: Adding sky-high gold heels and styling her hair into big, bouncy waves, the singer was the picture of confidence as she strutted her stuff in another daring gown

Closing the show with a bang, Mariah then slipped into a form-fitting gold gown as she welcomed her adorable twins Moroccan and Monroe to help her with the big finale. 

The New York native exuded glamour in the dress, which hugged her curvaceous frame from head to toe, as she belted out her best-known Christmas hit with her children - who she shares with ex-husband Nick Cannon.

Mariah and Bryan have been practically inseparable since she split from her billionaire fiance James Packer last October.

Big finish: Closing the show with a bang, Mariah then slipped into a form-fitting gold gown adorned with shimmering sequins

Big finish: Closing the show with a bang, Mariah then slipped into a form-fitting gold gown adorned with shimmering sequins

Star of the show: The New York native exuded glamour in the dress, which hugged her curvaceous frame from head to toe, as she belted out her best-known Christmas hit

Star of the show: The New York native exuded glamour in the dress, which hugged her curvaceous frame from head to toe, as she belted out her best-known Christmas hit

Family affair! She also welcomed her adorable twins Moroccan and Monroe - who she shares with ex-husband Nick Cannon - to help her with the big finale (above) 

Family affair! She also welcomed her adorable twins Moroccan and Monroe - who she shares with ex-husband Nick Cannon - to help her with the big finale (above) 

Mariah initially met the handsome back-up dancer when she employed him on her 40-date, $27.9million grossing Adventures of Mimi Tour back in 2006.

Speaking about his early work with Carey, he told E! News: 'Something connected with us back in the day and there was just a mutual admiration. 

She saw something in me that I actually didn't recognize at first, from that it was over. It was set in history that we were gonna be connected some way, some how.'

My man: Mariah and Bryan have been practically inseparable since she split from her billionaire fiance James Packer last October

My man: Mariah and Bryan have been practically inseparable since she split from her billionaire fiance James Packer last October

New chapter: Her ex James also appears to have moved on from their split, as he has been holidaying in Aspen with his new squeeze, reportedly called Kylie, over the last week (above)

New chapter: Her ex James also appears to have moved on from their split, as he has been holidaying in Aspen with his new squeeze, reportedly called Kylie, over the last week (above)

In a 2014 Instagram post, Tanaka gushed about the singer, saying, 'She has always supported me and been so kind.' 

Their relationship however soon grew into one of romance, and while they split after five months of dating in April, they soon reconciled - with the backup dancer now serving as her creative director. 

Her ex fiancé James also appears to have moved on from their split, as he has been holidaying in Aspen with his new squeeze over the last week.

The beauty was revealed to be a 'Canadian business owner and model called Kylie' by The Australian on Wednesday.

Back on track: Mariah and Bryan split after five months of dating in April, but they soon reconciled - with the backup dancer now serving as her creative director

Back on track: Mariah and Bryan split after five months of dating in April, but they soon reconciled - with the backup dancer now serving as her creative director

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