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.
Snooki 42 pounds
The Jersey Shore party girl showed off her dazzling post-baby body on the cover of Us Weekly in March 2013. Snooki dropped 42 pounds since giving birth to her son Lorenzo and explained to Us, "When you have a baby, everything changes." She added, "I lost it for me."