By Breaking Celebrity News Staff

The Jolie-Pitt clan got wicked Saturday.

Brad and Angelina took their four oldest kids -- Maddox, 10, Pax, 7, Zahara 6, and Shiloh 5 -- to see a matinee performance of the hit musical Wicked in London.

The outing may have been a continuation of Maddox's birthday celebration. The little hipster turned 10 on Friday.

The family is ensconced in England for a few more weeks while Brad works on World War Z, the futuristic zombe story that is more social commentary than horror flick.