Sean Preston's Big First Year!

Britney and Kevin's firstborn turns 1 today – and what a year it's been! Check out the little tot's biggest moments. By Brian Orloff and Cara Lynn Shultz

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Sean Preston (in a personalized jersey) gets a lift from proud dad Kevin. "Sean P ... that's my boy," Dad told Access Hollywood. "I get up in the morning with him and he's, like, all ready to play and stuff!"