13 Celebrities Who Look Amazing After Their Transformations

Losing weight while you're a celebrity has its pluses and minuses. You have access to trainers, chefs, and expensive treatments. However, you always have the unforgiving glare of the media on you...

Jonah Hill rose to fame in Superbad. He reminded us all of that chubby class clown in high school. The funnyman, however, turned heads after his appearance at the Toronto International Film Festival, where he strutted down the red carpet looking sleek and trim in a fitted black suit! Though everyone agrees that women are more heavily scrutinized than men for their appearance, Jonah said he was shocked how many more roles he was offered after the weight loss.

After a Hollywood career that spanned several decades, Alec Baldwin was on top of the world, enjoying his fame as an A-List celebrity. However, things quickly changed for the star when, after a routine physical, his doctor diagnosed him as being pre-diabetic. Alec stuck to a strict no carb, no sugar diet and lost 30 pounds within a few weeks, bringing his blood sugar down back into normal range. Alec credits the episode with making him realize that he's "mortal."

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!

No, you're not going crazy. That really is John Goodman - he's just undergone a crazy transformation! He rose to fame as Roseanne's husband Dan on Roseanne then went on to a movie career. After wrapping up filming the movie 10 Cloverfield Lane, John decided it was time for a major lifestyle change. Slow and steady wins the race, and it took John several years, but he lost a whopping 100 pounds by skipping unhealthy food and working out consistently.