Blair and 5-month-old son Arthur laugh it up in Beverly Hills. Plus: Russell Brand, Rihanna, Katy Perry and more
Credit: Allan Bregg/Splash News Online
Updated: Tuesday Jan 17, 2012 | 05:00 PM EST
More from PEOPLE
See More News
10 of 16
Twilight vamp Ashley Greene gets a quick touch-up Monday while filming her guest appearance on the '60s inspired TV series Pan Am in N.Y.C.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.