Lohan and Ronson share a laugh during a break from filming Labor Pains in North Hollywood. Plus: DeAnna Pappas, Brody Jenner, Paris Hilton and more  

BIRTHDAY BOY

He may be at work, but Adrian Grenier still finds time to celebrate his 32nd birthday with his Entourage castmates – Jerry Ferrara, Kevin Dillon and Kevin Connolly – between takes Thursday at West Hollywood's Urth Caffé.