It's no secret that people change over time in looks as well as personality. But sometimes their transformation will make you wonder. When it comes to celebrities, they use a lot of makeup and use other methods including plastic surgery to enhance their beauty. Some celebs choose for a subtle beauty overhaul - only opting for different hair color or quick teeth whitening - while others are so dramatic, the star looks almost unrecognizable. Here are some surprising transformations of celebs over time.