New Year, New You in 2016

Hollywood's Weight-Loss Winners!

Kirstie Alley, Kellie Pickler, Jonah Hill and more share the slim-down secrets that really worked


Lost 20 lbs.!
The bride-to-be, 43, used her impressive run on this season's DWTS to get back in shape before her wedding. "Now muscles I didn't know I had are defined. It's dramatic," the 5 ft., 4 in. star told PEOPLE after dropping four dress sizes. Currently a size 4, the mom of two is ready to slip into her dream wedding dress.