He still has a way to go before he can get a driver's license, but Maddox Jolie-Pitt, who turned 9 on Aug. 5, hit the race track during a belated birthday celebration with his family on Saturday.
Dad Brad, mom Angelina, brother Pax, 6, and sisters Zahara, 5, and Shiloh, 4, joined Maddox and friends for a private party at Go Kart World in Carson, Calif.
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