Vanity Fair hosts an Oscar Party worthy of the entertainment gods; Kim Kardashian attends Elton John's glamorous Academy Awards viewing party; Petra Nemcova steps out for The Weinstein Company's Oscar after party; Pharrell Williams and Esperanza Spalding enjoy themselves at Hans Zimmer's post-awards show fete; Jean Dujardin gets his Oscar engraved at the Governors Ball—Awards season wasn't officially over until the Academy Awards after parties ended in the wee hours of this morning and we have  the details on the hottest events of the evening in this installment of Last Night's Parties, Oscar Night Edition! More»

Amber Heard, Diana Agron and Raquel Welch join Vanity Fair and Montblanc at the Hotel Bel-Air; Harvey Weinstein, Jessica Chastain and James Cromwell celebrate the 40th anniversary of Charlie Chaplain's honorary Oscar; Kate Beckinsale, Chloe Moretz and Rooney Mara attend the Costume Designers Guild Awards; and Amanda Seyfried, Jennifer Carpenter and Richard Greico (!) walk the red carpet in Hollywood for the L.A. premiere of "Gone"; Pharrell hosts a dinner party with Bevy Smith, Terry Richardson, Usher, and Charlize Theron: check out all the details of what went down on "Fat" Tuesday in Last Night's Parties!

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From Theophilus' live-streaming performance at Bing Bar, to Paris Hilton dancing all night in the DJ booth at TAO with her brother Barron Hilton, to Quincy Jones being the party animal and supporting his daughter at the after party of 'Celeste and Jesse Forever' and more, Sundance's parties were all about family. For more coverage, check out our correspondent Party Baby for the latest news! More»

HBO kicked things off at Circa 55, where guests like Jane Fonda, Guy Pearce, and Ewan McGregor, and winner Claire Dane munched on beef tenderloin and sipped martinis. NBC had A-listers Jon Hamm, Colin Firth, and Nicole Richie schmoozing under the stars at the Beverly Hilton rooftop - right across from where Harvey Weinstein kept the company of Golden Globe winners Meryl Streep and Jean Dujardin, as well as Leo DiCaprio and countless other guests at his annual party. See this and so much more on our Golden Globes after party round up... MORE>>

After the awards ceremony winded down, celebrities dispersed into the night and the red carpets were rolled out yet again, mostly decking the halls of the Beverly Hilton, where the majority of Sunday's after parties were held. HBO kicked things off at Circa 55, where guests like Jane Fonda, Guy Pearce, and Ewan McGregor, and winner Claire Dane munched on beef tenderloin and sipped martinis. NBC had A-listers Jon Hamm, Colin Firth, and Nicole Richie schmoozing under the stars at the Beverly Hilton rooftop - right across from where Harvey Weinstein kept the company of Golden Globe winners Meryl Streep and Jean Dujardin, as well as Leo DiCaprio and countless other guests at his annual party. More»

Kate Hudson, Cameron Diaz, Drew Barrymore [via]

Michelle Williams, Jennifer Garner and more attend special screenings of their films showing in the 2011 AFI Fest; Robert Pattinson, Jon Hamm and more honor the work of those behind the scenes in entertainment; the first ever LACMA Art + Film gala co-hosted by Leonardo DiCaprio brings out one of the most star-studded crowds we've ever seen, with everyone from Zac Efron, Clint Eastwood and Zoe Saldana, to Stevie Wonder, Julian Schnabel and Jane Fonda—we, could keep going but we'll stop there, so come take a look at everything that went down this busy weekend in L.A. in a super-size edition of Last Night's Parties.

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; More»

It's no secret that Sundance has become less about the films and more about the scene. Or maybe it's only in our tabloid culture that the scene kind of eclipses the point of Sundance. At any rate, Brandon Davis is there, so what does that tell us? We received the above insta-bitch message from Kelly Cole who's there DJing the events Davis is slithering into and felt it called for a recap of what we really care about in Park City, so let's take a look at what's been going down at all these Sundance parties. More»

Yesterday evening, the Paris Theater hosted the world premiere of "Amelia." Director Mira Nair joined stars Hilary Swank, Richard Gere and Ewan McGregor as well as famous faces Mariska Hargitay, Harry Connick, Jr., Ang Lee and Julia Ormond for the red carpet showing. Telling the life story of Amelia Earhart, the legendary female pilot who disappeared while attempting to fly around the world in 1937, the film opens to the public this Friday. More»