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Christina Aguilera Shows Off Her 40-Lb Weight Loss In A Peekaboo Cutout Dress For 'Burlesque' Premiere After Following The Rainbow Diet

August 4, 2025 by Maria Pierides
shefinds | Celebrity
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Christina Aguilera is really putting her all into promoting Burlesque: The Musical, which is currently lighting up the stage at the Savoy Theater in London. And her fans are understandably obsessed!

The 44-year-old singer and actress – who starred in the 2010 movie alongside Cher, Kristen Bell, Julianne Hough, and Stanley Tucci, among others – pulled out all the stops for the official premiere.

For the glittering red carpet, Xtina flaunted her slim physique in a super-racy figure-hugging black dress, complete with long sleeves, daring cutouts, and a dramatic peekaboo front that exposed her black bra and underwear. It was just what the sartorial doctor ordered for the Burlesque: The Musical premiere!

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Christina Aguilera Burlesque the musical premiere

Christina Aguilera Looks Incredible At The 'Burlesque: The Musical' Premiere In London

The mom-of-two accessorized the sizzling dress with black sheer tights and pointed-toe sky-scraping heels; and for jewelry, she went for some dazzling statement earrings. Her signature blonde locks were styled in a slicked-back, wet-look down do, and her glam was classic Xtina: bold smoky eyes and a perfectly plump red lip.

Nobody can deny that the five-time Grammy winner is looking better than ever these days, which some fans think could be down to cosmetic enhancements and even Ozempic. However, Christina has stayed tight-lipped on what's truly contributed to her glow-up, with sources reportedly previously saying she's all about eating clean, exercising regularly, and prioritizing wellness.

Christina has previously credited the Rainbow Diet for helping her look and feel her best, especially after the birth of her children (17-year-old son Max and 10-year-old daughter Summer) and her divorce from Jordan Bratman. The diet focuses on including fruits and vegetables of every color in your daily meals, hence the name, with each color offering a unique set of vitamins, minerals, and antioxidants. It's not confirmed whether the "Pa Mi Muchachas" singer is still following the Rainbow Diet now, but judging by her radiant skin and super-toned physique, we wouldn't be surprised!

 
 
 
 
 
 
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A post shared by Christina Aguilera (@xtina)

 

Fan Comments

"The true and only Burlesque icon," raved one fan in the comment section of a joint Instagram post from Xtina and Burlesque: The Musical. "Omg the biggest icon in the world," echoed a second.

"Love how amazing Xtina is looking, so beautiful," gushed a third, followed by the heart eyes emoji. "Imagine being this GORGEOUS," praised a fourth, as a fifth said she was "amazing," followed by the fire, gold crown, and heart on fire emojis.

Author:

Senior Celebrity Writer

Maria has spent the last decade writing about entertainment, fashion, and lifestyle for online and print publications all around the globe – including InStyle, OK!, and The Mirror. At SheFinds, Maria covers breaking celebrity news, red carpet looks, celebrity transformations, A-list couples, and has a watchful eye on celebrity social media accounts. You can reach her at contactmariapierides@gmail.com

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