Paparazzi photos from Saturday, December 17 and Sunday, December 18

Kristin Cavallari out and about in L.A. (pics start here)

Vanessa Williams leaving the Anastasia Salon in Beverly Hills (pics start here)

Hilary Duff out and about in Beverly Hills (pics start here)

Actress Dianna Agron (Glee) out and about in West Hollywood (pics start here)

Briana Evigan at the Ashley Paige Swimwear Grand Opening on the Sunset Strip in Hollywood (pics start here)

Jessica Alba and her husband Cash Warren out and about in Santa Monica (pics start here)

Janice Dickinson filming her new TV show Janice TV in Beverly Hills (pics start here)

Jenny McCarthy and Maria Menounos filming Extra at The Grove in Hollywood (pics start here)

Justin Bieber leaving Spago restaurant in Beverly Hills (pics start here)

Sandra Bullock at the premiere of Extremely Loud and Incredibly Close in New York (pics start here)

Jessica Lowndes at the live Facebook concert to celebrate the launch of the Duracell Holiday Insurance Program in New York (pics start here)

Michelle Trachtenberg on the set of Gossip Girl in New York (pics start here)

Rachel Zoe at the launch of "Zoe Media Group" at The Sayers Club in Hollywood (pics start here)

*126 paparazzi pictures total in the gallery:

[Flynet, WENN, Pacific Coast News]