Last night in NYC, Kanye came out to Tom Sachs' private preview of space program's on Mars at the Park Avenue Armory, Diane von Furstenberg attended the Whitney Museum's Art Award Gala, Beach House rocked the Bowery Ballroom, Joan Rivers honors Annie Leibovitz at the CLIO Awards, and more! Last night's parties were all about the arts! More»

Tamra Barney and Vicki Gunvalson of the "Real Housewives Of Orange County" host a Bravo-star-laden party at Lexington Social House for their new wine of the month club; Busy Philipps, Jillian Barbarie, Lisa Ann Walter and others bring their young children to a family-friendly event at the Beverly Hills Hotel in honor of the collaboration between Paul Frank and Babies 'R' Us; "Revenge"s Emily VanCamp brings out the cast of her hit show to Sunset Tower to celebrate her June Lucky cover; Sidney Poitier shows up to support his daughter Anika showcasing her film at the 2012 AFI Women Directors Showcase; Will Arnett, Christina Applegate and Maya Rudolph talk "Up All Night" at the Paley Center. Last night's parties had something for people of all ages, and we've got the scoop right here. More»

Emily VanCamp and Madeleine Stowe give fans a sneak peak of future "Revenge" episodes at PaleyFest; Shannon Elizabeth and Pau Gasol go all in for the World Poker Tour's charity tournament; Nina Dobrev and the rest of the cast of "The Vampire Diaries" give fans the inside scoop at PaleyFest; the cast of "The Bold and The Beautiful" celebrate the show's 25th anniversary; Zoe Saldana and Bryan Cranston step out to watch Dave Matthews perform at John Varvatos' 9th annual Stuart House benefit—it was definitely a busy weekend, especially since we lost an hour to daylight savings, but we've got all the details on the best events in Los Angeles and the notables who attended in this edition of Last Night's Parties! More»

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»

Over the weekend the House of Waris rocked out with Spank Rock and Blood Orange at the Boom Boom Room, The Kills partied at the Electric Room, Purple Magazine held a dinner at Super Linda and celebrated fashion with Lindsay Lohan, Yigal Azrouel toasted at the Gramercy Park Hotel, Tavi Gevinson sang a Neil Young song and more. Last night's parties were all about style. 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»

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»

The Kardashian sisters, Blake Lively, Zoe Saldana, Taylor Swift and more step out for the 2011 Teen Choice Awards in Universal City where Lautner, Bieber, and "Glee" go home with big wins; Christina Ricci, Elisha Cuthbert, Felicity Huffman and some of TV's brightest rising stars attend Disney ABC Group's TCA 2011 Summer Press Tour—young Hollywood was out in numbers last night, with tweens barely old enough to drive staying out way past bedtime all over town and we've got the details in this edition of Last Night's Parties. [Selena Gomez, Justin Bieber photo via] More»