[Lally Weymouth, Kate Hudson, Matthew Bellamy] From NPR's Friday Night Spin party to the Washington Post Pre-WHCD Reception to the A-List Vanity Fair/Bloomberg after-party, find out what and who you missed in Washington over White House Correspondents' Association Dinner Weekend! More»

Last night in NYC, Glenn Close and Coco Rocha "Bid To Save The Earth" at Christie's Green Auction, the New Museum honored Paul McCarthy at their spring gala, Barbara Walters and Katie Couric were at the Four Seasons to celebrate the 35 most powerful people in media, Scout Willis performed at The Standard, East Village for the launch of BAMart silent auction, and more. Last night's parties were all about the spring galas! 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»

The 54th Annual Grammy Awards takes over the Staples Center; Paris Hilton and Afrojack attend EMI's Grammy after party; Tony Bennett and Diana Krall perform at Clive Davis and The Recording Academy's Pre-Grammy Gala; Ne-Yo and Compound Entertainment throw a Pre-Grammy midnight brunch; Kelly Clarkson and John Legend attend Sony Music Group's Grammy Reception at Cecconi's; Bruno Mars performs at Warner Music Group's Grammy Celebration hosted at Chateau; Jay-Z's Roc Nation holds a pre-Grammy brunch at Soho House; MusiCares honors Paul McCartney as person of the year and raises $6.5 million for artists; Cash Money Records holds their 3rd annual pre-Grammy Awards party with Lil Wayne and Drake; Flo-Rida and Pia Toscano rock the house at OK! Magazine's pre-Grammy event—Los Angeles was alive with music this weekend and we've got your inside scoop on all the festivities and the celebrities who attended them in this edition of Last Night's Parties! More»

Jenny McCarthy hosts a World Series of Boxing match; The Producer's Guild honors Angelina Jolie in a celebrity filled night; Kate Beckinsale, Ali Larter and HIMYM star Neil Patrick Harris come out for a legen—wait for it —dary opening night of Cirque du Soleil's OVO in Santa Monica; Selena Gomez sings for UNICEF; The Wonder Girls come to America under the guidance of Nick Cannon—Sundance wasn't the only thing going on over the weekend, see what went down in L.A. in this installment of Last Night's Parties. 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»

From Betty White to Robert Pattinson, it was raining stars at the People's Choice Awards; Shenae Grimes and Stephanie Pratt attend the opening of a Swiss timepiece flagship on Melrose; Liam Neeson, Kristen Bell and fellow faces of the big screen hit the downtown premiere of The Grey; Michelle Williams, Bradley Cooper, Lindsay Lohan and more celebrate awards season with the Weinstein Co. and Audi at Chateau—we have your details on how red carpet season kicked into high gear this week in this installment of Last Night's Parties. More»

Lady Gaga, LL Cool J, and Katy Perry celebrate the nominees of the 2012 Grammys with a concert and after party; Amy Smart and Patti Stanger step out for the launch of a new jewelry collection at private cocktail party in Beverly Hills; Robert Downey Jr., Helen Mirren, Warren Beatty, Ben Stiller and others attend the 2011 BAFTA L.A. Britannia Awards—Miami is popping off with Art Basel, but there was still plenty of action in L.A. on Wednesday, so get all the details in this edition of Last Night's Parties.

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