Wolfgang Puck hosts brunch for Les Moonves and Nobuyuki Matsuhisa; Harry Potter wins big at Spike TV's sixth annual SCREAM Awards; Nicole Richie and other honor Justin Timberlake is for being especially green; Scott Caan and Jason Mraz are recognized for their commitment to the Life Rolls On Foundation; Usher and Bono perform while Lady Gaga has a her "first Marilyn moment" as she serenades the former president at the 10th anniversary gala of Bill Clinton's Foundation; Jennifer Aniston, Guy Ritchie and others toast Robert Downey Jr. for his impressive body of work—it was a very busy weekend of event here in L.A., get all the details in this edition of Last Night's Parties.

[Jennifer Aniston, Robert Downey Jr., Justin Theroux photo via]

Justin Timberlake Petra Nemcova benji madden Rachel Zoe Erika Christensen bono Kim Raver Jessica Alba Cash Warren Jennifer Aniston Fergie Joel Madden Sean Penn Jane Fonda Jack Black Zach Braff Cloris Leachman Nicole Richie Paul Reubens Tracy Anderson Chevy Chase Michael Douglas Jon Favreau Aubrey Plaza rosanna arquette Les Moonves Julie Chen Sugar Ray Trudie Styler Amy Smart Patricia Arquette The Edge Daryl Hannah Emmanuelle Chriqui Maria Bello Lily Collins Guy Ritchie Dylan McDermott black eyed peas Matt Smith Julia Ormond Matthew Reeve Josh Duhamel Anthony Michael Hall Wolfgang Puck Robert Downey Jr. Usher Garry Shandling Fred Savage Perrey Reeves michael c. hall Mel Gibson Jodie Foster Paul Wesley todd phillips Justin Theroux jason mraz Richard Perry Jason Lewis John Cho Antonio Villaraigosa Jeffrey Katzenberg Scott Caan Robert Downey Sr. Joel Silver Universal Studios David Foster Sofia Vergara Mary Lynn Rajskub Sal Masekela Chloe MOretz Puck Mary Elizabeth Winstead Julie Benz Michelle Kwan Burbank Ron Meyer Charlotte Ross Jim Toth Blake Anderson James Caan Mira Sorvino Caity Lotz Marina Del Rey Jacqui Ainsley Constance Zimmer Frances Fisher Blair Rich Sue Kroll Geena Davis Anna Torv Harry Potter and the Deathly Hallows Part 2 Laura Marano Vanessa Marano Harry Potter and the Deathly Hallows Jared Harris Nick Offerman Adam Fogelson Stevie Nicks