Demi Lovato, Britney Spears and L.A. Reid celebrate "The X Factor" finalists at the SLS Hotel; Marion Cotillard brings her style A-game in Dior to the Rust And Bone premiere at AFI Fest 2012; Selita Ebanks, Eva Marcille and Jamie Kennedy hit the 22nd Annual NAACP Theatre Awards—get caught up on Monday's top events in this edition of Last Night's Parties.

The Guest List

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Mario Lopez• Khloe Kardashian• Britney Spears• Jamie Kennedy• Adrienne Bailon• Selita Ebanks• LA Reid• Grauman's Chinese Theatre• Marion Cotillard• Demi Lovato• Tichina Arnold• SLS Hotel• Jesse Williams• Josh Sussman• Tom Bernard• Julissa Bermudez• Courtney Mazza• John C. Reilly• Eva Marcille• Jennia Fredrique• Director's Guild of America• The Bazaar• Mike Barker• Meagan Tandy• Kate Burton• Hal Sparks• THE X FACTOR• Alex Lombard• Matthias Schoenaerts• John Savage• Erica Hubbard• Blanca Blanco• Richard Roundtree• AFI FEST 2012• LisaRaye McCoy• Tessa Ia• FOX's "The X Factor" Finalists Party• "The X Factor" Finalists Party• The Bazaar at the SLS Hotel• Lyric Da Queen• Jemelle Joseph• Julien Joseph• Cece Frey• Drew Chadwick• Keaton Stromberg• Wesley Stromberg• Vino Alan• Arin Ray• Jason Brock• Jennel Garcia• Beatrice Miller• Paige Thomas• AFI Fest 2012 Rust And Bone Premiere Gala and After Party• AFI Fest 2012 Rust And Bone Premiere• Rust And Bone Premiere Gala and After Party• Rust And Bone Premiere• Jacques Audiard• Tom Bidegain• Alexandra Schouteden• Joachim Roenning• Espen Sandberg• Pal Sverre Hagen• Andrew Renzi• Kyle Catlett• Tosh Gitonga• Ginger Wilson• Sarika Hemi Lakhani• Joachim Lafosse• Jacques-Henri Bronckart• Carolyn Zeppa• Drew Denny• Alison Dickey• Jay Keitel• Kim Sherman• Jan Ole Gerster• Aaron Munson• Rust and Bone• 22nd Annual NAACP Theatre Awards• Malinda Williams• Brely Evans• Tasia Sherel• Freda Payne• Rhonda Morman• Judy Pace• Liana Mendoza• D.B. Woodside• Brian White