Brad is Pax's dad: Official

Who's the daddy - Brad Pitt's the daddy...and it's official.
In a Santa Monica court today Pax Thien Jolie has had Pitt legally added to his last name. Pax, pictured here, is the third adopted child of Angelina Jolie to take the famous Pitt surname and now we can't wait for the official ''Welcome To The Tribe'' party. Happy parenting, Brangelina.