2012 Celebrity transformations

There's no way Winokur could play "Hairspray's" zaftig Tracy Turnblad these days. The Tony-award winning actress has dropped 60 pounds this year. And she isn't the only star who changed in 2012.

Jessica Simpson has been pretty open about the difficulty she's had shedding the pounds since she gave birth in May. But she celebrates her 50-pound weight loss in a new Weight Watchers commercial while not yet responding to reports that she is once again expecting.

Oh wily Miley. We have watched you morph this year from a former Disney star to a harder-edged rocker type who performs with strippers. What would Hannah Montana say?

From thong to thin, McConaughey reportedly dropped 40 pounds for a movie role and the transformation was startling on the "Magic Mike" star.

The comedian reportedly underwent surgery to help her shed 80 pounds and give her a new look.

Deen announced in June 2012 that she lost 30 pounds over a six-month period after she was diagnosed with Type 2 diabetes. These days she is looking slimmer than ever.