Transformations: Keira Knightley

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Keira Knightley in 2003

Don't mess with perfection? That's not a rule Keira Knightley believes in. "She's quite up for doing different things," notes her longtime hairstylist, Ben Skervin. Often, he says, the star just feels like trying something new. "I'll get a call: 'You weren't around yesterday, I I got my hair cut off!'"

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