The Middleton Family; Chris Jackson/Getty Images
January 09, 2012

Happy birthday, Kate Middleton! The Duchess of Cambridge hits her milestone 30th today, and she certainly has a lot to celebrate. Take a moment to mark her big day by clicking through her transformation, and see her rise from teenage field hockey star to red carpet royal.

MORE:Kate's Memorable OutfitsAre You a Kate or A Pippa?• Kate’s Wedding Photos

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