Christina Aguilera rocks black mini skirt and boots as she rings in her 43rd birthday at Kylie Minogue’s residency show in Las Vegas: ‘Sin city bday’

Christina Aguilera celebrated her 43rd birthday in Las Vegas last Monday.

The singer took to Instagram on Friday to share photos showing her celebrating with her loved ones at a Kylie Minogue residency show and a Squid Game VR session.

In her caption, the Beautiful hitmaker – who brought along her family for support when she played her first concert Down Under in 15 years last month – wrote 'sin city bday' alongside a dice and fire emoji.

The first photo in the photo series featured her showing off her edgy-chic all-black outfit as she posed in the elevator.

She wore a graphic T-shirt, a leather miniskirt and over-the-knee boots.

She also wore a loose leather puffer jacket and oversized retro sunglasses.

She was dripping in diamonds as she accessorized with large hoop earrings, several chain necklaces and dazzling statement rings.

She then shared a video of herself and her friends sitting in the back of a golf cart as they were driven around a venue, presumably ahead of Minogue's performance.

The Grammy winner then shared a clip of the 55-year-old singer being carried on stage by her backup dancers during her performance.

The Padam Padam hitmaker started her residency on November 3.

At the end of this month, Aguilera will begin her own Las Vegas residency at the Voltaire Belle de Nuit venue at The Venetian Resort, starting over New Year's Eve weekend and running through March.

As part of her birthday slideshow, Aguilera also shared an open gift box with cups covered in black rhinestones that read “Xtina” in red studs.

She also shared a sweet video of her and loved ones – including her nine-year-old daughter Summer – during a VR session at a birthday party for 'Momma

The first photo in her Instagram photo series featured her showing off her edgy-chic all-black outfit as she posed in the elevator

She wore a graphic T-shirt, a leather miniskirt and over-the-knee boots. She shared a video of herself and her friends sitting in the back of a golf cart as they were driven around a venue, presumably ahead of Minogue's performance.

The Grammy winner then shared a clip of the 55-year-old singer being carried offstage by her backup dancers during her performance

She and her family also celebrated her birthday with a virtual party during a fun VR session

Together with her nine-year-old daughter Summer, Aguilera danced around the VR party and also had a beautiful cake

During their fun VR session, she blew her virtual cake together with her daughter and family

In addition to dancing around, they also played a round of Squid Game games

She shared a compilation of clips in which they got to work on the games from the popular Netflix series

She also posted a video of her and her family running through the VR room

As part of the carousel, she posted a clip of a group of her backup singers performing a fun rendition of the happy birthday song for her as she filmed from the end of the stage.

As part of her birthday slideshow, Aguilera also shared an open gift box with cups covered in black rhinestones that read “Xtina” in red studs

After blowing out the virtual cake, the group also played various games from Squid Game.

She also shared clips of her and the group wearing the gear and running around the VR room to the tune of laugh-out-loud music.

She appeared to have returned to the Voltaire Belle de Nuit venue to rehearse for her own residency shows when she later shared a clip of a group of singers performing a fun rendition of the happy birthday song for her as she filmed from the end of the stage. .

To complete her carousel, she also shared a photo of herself posing in the elevator while modeling the same outfit in her cover photo.

She also shared a clip of her and her friends dancing and singing her 2020 hit Woohoo, featuring Nicki Minaj, as they all sat around a round dining table.

Earlier this week, she also posted videos of her and Summer posing beamingly in front of a beautiful display of birthday balloons and silver streamers.

She wore a casual all-black outfit, but looked glamorous as usual with sultry makeup and silver jewelry.

She also showed off the cake and the lavish display her team surprised her with during her residency rehearsal.

Earlier this week, she also posted videos of her and Summer posing beamingly in front of a beautiful display of birthday balloons and silver streamers.

She wore a casual all-black outfit, but looked glamorous as usual with sultry makeup and silver jewelry

She also showed off the cake and the lavish display her team surprised her with during her residency rehearsal

She wore a beanie and tinted sunglasses as she took in the sweet birthday surprise. In the clip, she blew out the candles with her team around her

She also showed off the stunning frame with her sultry residency show snap

She wore a beanie and tinted sunglasses as she took in the sweet birthday surprise.

In the clip, she blew out the candles with her team around her.

She also showed off the stunning frame with her sultry residency show snap.

The Genie in a Bottle hitmaker's eldest child, 15-year-old son Max Liron, did not appear to be in attendance. She shares it with her ex-husband Jordan Bratman.

She shares daughter Summer with her fiancé Matt Rutler.

In the caption of her video, she wrote, “Thanks for all the birthday wishes. Sending love from Vegas'.