[Christina Aguilera, Mathew Rutler via] Sienna Miller gets honored for her humanitarian work; Christina Aguilera, David Arquette and some others step out for a very Bolthouse video game launch blowout; Malcolm McDowell, Bob Weinstein and more have a post-premiere celebration at The Little Door; Babs Streisand is honored at the Cedars-Sinai Board of Governors gala—there was quite a range of events last night, let's discuss in this edition of Last Night's Parties. More»

Just because they fight on the show doesn't mean the cast of "The Hills" can't get along for one rowdy weekend in Miami. Kristin Cavallari, Lo Bosworth, Brody Jenner, and Audrina Patridge were as thick as theives at the Maxim 2010 party on Saturday night at The Raleigh in Miami.- More»