The Best and Worst Celebrity Transformations of 2012

How many of us start every new year with plans to change--whether it's promising to hit the gym more often, to read more books, or try out a new haircut? Well, it looks like you're not alone. Celebs from Anne Hathaway to Ke$ha have kept us entertained with their extreme transformations in 2012. Who do you think had the best (or worst) look this year?

By Julie Pereira, Thread Blogger