Fierce New Photos Of Celebs With Major Weight Loss - Who Had The Biggest Transformation?

Losing weight while you're a celebrity can be tough, with the unforgiving glare of the media on you. But these celebs did it, and they are showing off their results in these stunning photos. But which celebrity had the most drastic transformation?

Jennifer Hudson first captured our hearts when she competed on American Idol season 3 in 2007. Despite placing seventh in the singing competition, she still rose to fame, and by the age of 30 had won the Golden Trinity - a Golden Globe, Grammy, and Academy Award were all under her belt. She put her efforts next on losing weight, dropping 80 pounds using Weight Watchers. Her real-life success story of using the program meant that she was the perfect spokeswoman for Weight Watchers.

Renee Zellweger is a serious actress, and she's not afraid to drastically alter her body in order to perfectly embody a character. For the movies in the Bridget Jones' Diary trilogy, Renee committed to the part of the British journalist who struggled with her weight by putting on approximately 20 pounds. She followed that up with toning up and dropping the pounds again for her lead role in 2003's Chicago. But whatever her weight may be, she always looks gorgeous!

You probably know him as Turtle from the HBO smash hit series Entourage, but there's more to the actor than just being a funny guy. He got a reality check when a doctor told him his weight endangered his health. As the old saying goes, "Slow and steady wins the race" and Jerry took that to heart. He lost an impressive 60 pounds over the course of 10 months and has said in interviews that he feels like a new man.

Love her or hate her, one thing everyone can agree on is that Rosie O'Donnell is an open book! She came out very publicly on her eponymous talk show Rosie back in 2002, in order to raise public awareness about challenges facing LGBT couples who wish to adopt. She has spoken about always struggling with her weight, but in 2013 took the drastic step of deciding to go under the knife for gastric bypass surgery. She lost 70 pounds in two years!