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3. Kelly Osbourne
Known as metal legend Ozzy Osbourne’s chubby daughter since she first appeared on The Osbournes reality show, Kelly has put a lot of work into not only changing the way she looks, but creating a successful career in entertainment outside of the reality show sphere.
Kelly suffered from huge problem related to binge eating and eating when she was emotional. She was able to conquer those problems and drop an amazing 50 pounds. She changed her diet completely and included a fitness plan of weight training and dance classes.
She now has a great career as a fashion analyst and finally looks her age. Her brother had similar success, dropping significant weight after the family reality show ended and transforming from chubby teens into good looking young adults eager to continue their careers in more serious avenues.
Kelly showed her new look for the first time in December 2010 when she graced the cover of Shape magazine in a size 2 dress.