Paparazzi photos from Thursday, May 6

Mario Lopez and his girlfriend Courtney Mazza in New York (pics start here)

Tila Tequila arriving to LAX nightclub in Las Vegas (pics start here)

Scarlett Johansson leaving a gym in West Hollywood (pics start here)

Jon Hamm on the set of Mad Men in San Pedro, CA (pics start here)

Rebecca Gayheart out and about in West Hollywood (pics start here)

Julia Stiles at La Conversation Cafe in West Hollywood (pics start here)

Helena Christensen at a photocall at Macys in New York (pics start here)

Quentin Tarantino leaving Cafe Med in West Hollywood  (pics start here)

Rachel Bilson leaving a friend's house in West Hollywood (pics start here)

Robert De Niro and Bradley Cooper on the set of their new film The Dark Fields in Philadelphia (pics start here)

Vanessa Hudgens leaving the Diesel Store in West Hollywood (pics start here)

Kate Moss out and about in London (pics start here)

Shannon Elizabeth out and about in Hollywood (pics start here)

*139 pics total in the gallery:

[Flynet, WENN, Pacific Coast News, Mavrixonline]