They say the pressure to remain beautiful and youthful in Hollywood is relentless. Some celebrities, as you will see in this gallery, have dramatically changed their look over the years after weight loss and in several cases, plastic surgery.
Some celebs at times even decide to have gender reassignment surgery. What's your say about their before and after pictures? Let us know in the comments section below.
1. Caitlyn Jenner, 68
As a man, Caitlyn was a retired Olympic gold medal-winning decathlete who set a world record in the 1976 Olympics. He had hormone replacement therapy in the 80s but stopped it when he met his future spouse.
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