By Bronwyn Barnes
Updated Nov 16, 2011 @ 5:25 pm
Donato Sardella/WireImage

Jessica Biel and Hailee Steinfeld helped celebrate the new Tod's Signature Collection at L.A.'s Chateau Marmont, along with fellow party-goers Justin Timberlake and Jon Hamm. See Nicole Richie, Salma Hayek and more stars at last night's hottest parties in the gallery!