celeb body transformation

Jillian Michaels became a household name after joining 'The Biggest Loser' as a coach when the hit series premiered in October 2004.

Sami Sheen got real about her cosmetic procedures, sharing before-and-after photos.

Sydney Sweeney showcases her dedication to her craft through remarkable physical transformations for diverse roles, most recently in the Christy Martin biopic.

Before becoming Justin Bieber's 'One Less Lonely Girl,' Hailey Bieber had already made headlines as a model and as the daughter of actor Stephen Baldwin.

After Jessica Simpson stunned fans with her new look at the 2025 MTV Video Music Awards, OK! rounded up photos showcasing her transformation through the years.

Dwayne 'The Rock' Johnson stunned fans when he debuted his dramatic weight-loss transformation at the Venice International Film Festival on September 1.

Pamela Anderson has transformed from a girl with aspirations of modeling into a Hollywood s-- symbol.

See Nelly Furtado’s jaw-dropping transformation leading up to her headline-making, show-stopping festival glam!

Jamie Lee Curtis, who previously revealed she had plastic surgery when she was 25, has been an advocate of body positivity and natural beauty.

Courtney Stodden revealed her body transformation in new photos wearing lingerie.

From 'One Tree Hill' to 'Freakier Friday,' Chad Michael Murray has held onto his heartthrob status for years.

Jennifer Love Hewitt continues to embrace her natural beauty and unmatched poise in her rare public appearances.

Kristin Cavallari turns up the heat in a crop top and bikini after revealing her b----- enhancement.

Lizzo clapped back at Ozempic rumors with before and after photos, revealing her intense routine.

Sydney Sweeney revealed she gained 30 pounds in order to play boxing icon Christy Martin in a new biopic.

Kaitlyn Bristowe has never shied away from keeping it real — or showing a little skin!

Meghan Trainor, Kylie Jenner, Lizzo and more celebrities are sharing their stunning 2025 transformations.

Amber Rose made waves after she debuted a bold new look at an Oscars party — see her incredible transformation throughout the years.

Khloe Kardashian looked unusually thin in a series of new swimwear snapshots.

After winning the 2019 'Sports Illustrated Swimsuit' Issue's Swim Search, Brooks Nader has continuously set pulses racing with her jaw-dropping curves and daring styles.

Meghan Trainor got some help before undergoing b----- surgery.

Lizzo has been sharing body-positive affirmations alongside steamy photos of herself to inspire her followers amid her weight-loss journey.

Christina Aguilera stunned in a see-through bodysuit after she clapped back at body shamers.

Scott Disick's dramatic physical transformation has sparked fan speculation, with many questioning if weight-loss drugs played a role in his slimmer appearance.

Jennifer Lawrence has emphasized her natural, effortless beauty over the years.

Before bulking up for his 'Gladiator II' role, Paul Mescal already captivated his fans with his charm and striking good looks. See his transformation, here.

See how Alabama Barker has grown from being daddy's little girl to a natural beauty.

David Dobrik wrote 'new year, new me' alongside a before and after photo of himself shirtless.

Bre Tiesi has enhanced her appearance through procedures and injectables.

Angela Simmons has been working with the brand IVY RX to shed some pounds — and the results do not disappoint.

Take a look at how much Anna Kendrick has evolved over the years, all while maintaining her doll-like features!

Lindsay Lohan looks like she is aging backwards!

See how much Britney Spears has evolved decades after her debut.

Rob Kardashian is known to stay out of the spotlight.

Jocelyn Wildenstein said she underwent extensive plastic surgeries because her ex-husband, Alec, hated 'to be with old people.'

Before starting her weight-loss journey, Star Jones reached 307 pounds and was considered morbidly obese.

John Goodman has shown off his noticeably slimmer physique after his dramatic weight-loss journey.

Although she will turn 62 in November, Demi Moore has maintained her youthful glow through the years.

Tyler Baltierra took to Instagram to show off his incredible weight-lifting progress. His wife, Catelynn, drooled over her husband in the comments section.

The songstress debuted her latest body transformation with steamy Instagram snaps last week.

Rob Kardashian is celebrating his 35th birthday on Thursday, March 17.

Mark Wahlberg revealed he packed on the pounds to play a boxer turned priest in the upcoming film, Stu, and it wasn't exactly easy.

Rebel Wilson's weight loss journey is incredible! See the 'Pitch Perfect' star's incredible body transformation in ten photos, here.

The singer and her husband, Brandon Blackstock, called it quits in June.

The book, written by Glennon Doyle, is a New York Times bestseller.

The 36-year-old breaks a sweat as she demonstrates her top gym moves.