How's your New Year's resolution coming along? Don't tell us -- you gave up on January 2. Well, don't give up hope! Lots of celebs have made huge changes to their lives. Keep clicking to see 12 stars who have transformed themselves and gone from flabby to fit, party girl to mommy and more.
Transformation: Stout teen to svelte twentysomething
Since her days on "The Osbournes," we've seen Kelly battle with her weight. When she stopped abusing prescription pills, matters only got worse. So Kelly decided to do "Dancing with the Stars" in 2009 to lose weight, and boy, did it work! Since then, she's lost 50 pounds. Doesn't she look fantastic?