Leona Lewis attends Sushisamba 1st Anniversary party at the Heron Tower, London 12/11/2013

Madchen Amick attends Guide's Magazin Hot List party at Emerson Theatre, Hollywood

Hilary Duff leaving Henry's and Harroo's nightclub in West Hollywood

Amy Poehler and her boyfriend Nick Kroll get together for a photograph while attending the 2013 GQ Men of the Year Party held at the Ebell Club on Tuesday (November 12) in Los Angeles. Amy is wearing a Alc dress and shoes by Also.

Ashlee Simpson attends BandFuse Rock Legends Event in West Hollywood 2013-11-12