Jessica Alba & Rachel Zoe at Chanel Party Las Vegas Pictures

Chanel threw a fashionable dinner to celebrate the opening night of Numéro Privés at the Wynn Hotel in Las Vegas on Friday. The attendees included Jessica Alba, Rachel Zoe, Diane Kruger, Alexa Chung, and Brad Goreski. Diane got glam in a sequin-embroidered number, while Jessica wore a black and white silk dress to pose alongside her husband Cash Warren. Jessica's fun night out followed a busy business week that saw the launch of her new eco-friendly home products line, The Honest Company. Rachel and Rodger Berman took the quick trip to Sin City while their pals Joey Maalouf and Mandana Dayani took care of their son Skyler. Jessica and the rest of the stylish crowd kept the action going with an afterparty at 1Oak, where they hung out until after midnight.

Billy Farrell and David X. Prutting/BFAnyc.com