Shocking, indeed! Some celebs seek out extreme methods to shed pounds, while others transform with the aid of healthier methods. From Rosie O'Donnell's and Jordin Sparks' respective 50 pound weight losses to Biggest Loser winner Rachel Frederickson's whopping 155 lighter frame, see before and after pictures of celebrities' weight loss transformations.
Chaz Bono 50 to 80 pounds
Sonny and Cher's son revealed his amazing slim-down in September 2013 after being advised on the The Doctors to lose "between 50 and 80 pounds." He told Entertainment Tonight of his weight loss, "Everything is easier. Everything physically is easier. Everything feels better. And then emotionally, I just feel more comfortable and more confident."