New Year, New You in 2014

Hollywood's Weight-Loss Winners

See which stars transformed themselves – Jessica Simpson! Jennie Garth! – with a whole new look and attitude

JENNIE GARTH

Divorce threw Garth "for a loop," but it gave the actress a chance to start focusing on herself – inside and out. "A lot of exercising and a lot less eating" helped the former Beverly Hills 90210 star drop 30 lbs. after her March 2011 split from husband Peter Facinelli. "I really feel like that part of me was dead and I need to shed it off," she told PEOPLE. "I decided to start taking better care of myself."