Brad Pitt With a Ponytail on Set in London

Brad Pitt was back on the set of The Counselor in London today, sporting a sexy, slicked-back ponytail. He showed off the hairstyle after wearing a cowboy hat for filming earlier this week. Brad's putting in a few days' work on the Ridley Scott-directed movie, which also stars Michael Fassbender. We'll have to wait until next year to see Brad's work in this feature on the big screen, but we already have a glimpse at his next project, which hits theaters in October: the trailer for Killing Them Softly came out this week with a look at Brad's very serious role.

It's an exciting weekend for Brad and the rest of the Jolie-Pitt family, since Maddox is turning 11 tomorrow! Maddox's birthday has been fun in years past, with a variety of celebrations. Last year, the whole crew saw a performance of Wicked in England, and in 2010 he had a go-karting party.