Ever since she lost 48 pounds on Dancing with the Stars, Kelly Osborne has gone through a complete transformation and managed to keep the weight off. But she still remembers when she was called fat. She told Us Weekly last year, "I took more hell for being fat than I did for being an absolute raging drug addict. I will never understand that." That didn’t stop her from being harsh on Christina Aguilera during a recent episode of E!’s ‘Fashion Police’.