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Happy Birthday! Take a look back at Gwen and Gavin's little rock star's transformation from tiny tot to super-cool kid. By Kate Hogan
Credit: Bret Thompsett/Pacific Coast News
Updated: Friday May 22, 2009 | 02:40 PM EDT
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Gavin and Kingston soak up the ocean air on an April 7 trip to Long Beach, Calif. The two will be spending a lot more time together in the months to come: Kingston is accompanying Dad on his summer tour.
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