The Jolie-Pitt clan knows how to party. Brad and Angie hosted a belated birthday bash for Maddox Saturday morning at Go Kart World, and only RadarOnline.com has all the details.
Maddox, who turned nine on Thursday, was the star of the day. We're told his brother Pax and sisters Zahara and Shiloh were there for the party along with about two dozen other kids.
"They stayed for about two hours," an eyewitness tells RadarOnline.com.
"Brad and Angie were very nice people and only asked other people there not take pictures," the source says
Brad "The Dad" and Maddox, have a history of enjoying fast cars, trucks and three-wheelers together, and today was no exception.
Go Kart World, just south of L.A. in Carson, CA, is a favorite of celeb kart fans including Kanye West.