Christina Aguilera’s sexiest snaps as she turns 40: From 90s icon to curvy queen

Pop queen Christina Aguilera is celebrating a milestone birthday as she turns age 40 today.

It's been 22 years since the stunning songstress unleashed the hit track Genie In A Bottle which put her on the map, propelling her childhood fame to new heights.

Proving that she wasn't just a one hit wonder, she reached the top spot with two further tracks What A Girl Wants and Come On Over Baby (All I Want Is You), before ditching her teen image.

Ramping up the sex appeal, the barriers certainly came down as she unleashed the song Dirrty which displayed her sexuality.

After The Grammy Award winner had revamped herself she took a step away from the limelight as she welcomed her first son Max Liron Bratman, with her first husband Jordan Bratman.

It wasn't meant to be and the pair filed for divorced with Christina meeting Matt Rutler in 2009 on the set of the film Burlesque, and the now-engaged duo have been together since 2010.

To mark Christina's special day as she reaches another decade, Daily Star are glancing back at some of her iconic sexy moments from across the years.

The Voice starlet

In 2011, Christina turned her attentions to the hit TV show The Voice USA and became one of four coaches for six seasons before she decided to leave in 2016.

The 90s pop star certainly brought a degree of elegance, flare and even some daring attire from her revamped Stripped album.

During season 10, Christina was ready to fly the nest after she'd coached her protégée Alisan Porter to take home the win.

Leaving on a high, she decided to turn her attention back to her musical career.

Genie In A Bottle icon

Christina's powerful vocals performances along with her scantily-clad attire made her one of the most iconic stars of the 90s.

At just age 18, she quickly became one of the most famous singers on the planet, alongside pop princess Britney Spears.

Boasting vibrant platinum blonde hair with vibrant pink streaks, she had a certain teen innocence about her.

Back in 2000, the hitmaker introduced one of the hottest trends of that era which was the bandeau top and jeans.

The teeny garments became her signature attire and often saw the bombshell exposing her slender and toned torso.

Video Music Awards siren

The Grammy Award winner turned up the heat, boasting her brand new sexy image as she unleashed her new hit track Dirrty.

Wearing a thigh grazing denim mini skirt and a criss-crossed flimsy piece of material to the Video Music Awards in 2002, she definitely showed fans that she had grown up and wanted to leave innocent Christina behind her.

The songstress teamed her flesh-flashing attire with a super cool white hat that was placed on her head at the side.

As ever her makeup was bold and vibrant, including orange eyeshadow, lashings of dramatic eyeliner and a glossed pink lip.

Sweetheart dress at the Golden Globe Awards

In 2010, Christina had transformed herself once again, this time she toned down the sex appeal and instead reinvented herself as a fashion icon.

Flashing a glimpse of cleavage, she rocked a sweetheart corset style frock that boasted equal amounts of silver and pink material that covered her assets and stomach.

Placing two hands on her hips, she glanced back over one shoulder as she beamed a huge smile at the photographers.

In true Christina fashion, she added some statement jewellery including a variety of chunky rings along with an oversized pair of droplet earrings.

Smooch with Madonna and Britney

One of Christina's most memorable moments of all time will always be her performance with the legendary Madonna and her alleged rival Britney Spears at the Video Music Awards in 2003.

The trio took to the stage looking sexier than ever as they danced and sang together for the first time, although their routine saw jaws fall open as the Like A Virgin hitmaker leaned in for a kiss.

Standing in between the two 90s beauties, she moved her head towards Britney as they shared a moment before lunging in for a smooch with the Lady Marmalade singer.

90s sex symbol

After Christina had turned on the sex appeal in 2002, she became quite the blonde bombshell pin-up of her time.

In 2006, she showed off her fun side at the MTV Awards rocking a deep plunging and sparkling figure-hugging dress.

The frock was sea blue in colour and boasted incredibly thin straps that somehow defined all odds and managed to keep her modesty in tact.

Giving a wink towards the lens along with an air kiss she showed her cheeky side as she completely owned the slinky fit garment.

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