Life & Style Inside Brad & Angelina's Birthday Party For Maddox LOS ANGELES, Calif. (August 7, 2007) – Slip N' Slides. Army games. ATV rides. Just your average six-year-old's birthday party, except the birthday boy has some very special parents. Brad and Angelina's oldest son Maddox turned six on Sunday and mom and dad blocked off the entire weekend for a surprise celebration at their Santa Barbara home. Photos featured inside the new edition of Life & Style magazine (on newsstands Friday) show daddy Brad in military-chic leading Maddox and his friends in a game of capture the flag and even Angie and Zahara got into the camouflage spirit! Maddox's siblings Shiloh, Pax and Zahara were at the party, but mostly hung out with mom as Brad kept the kids busy. And clearly, Brad and Angelina have a biker-in-the-making on their hands, as Maddox zoomed around on an ATV. Luckily, he will have lots of practice time as the proud parents got their daredevil in training a new dirt bike, leather jacket and helmet – just like his daddy!