Megan Tandy, Erica Rose and Mark Foster from Foster The People hit up the imaginatively named F*CK CANCER event at Avalon Hollywood; Bruce Vilanch, Jaime Pressly, Greg Louganis, Missi Pyle and many others show up to support an ageless Christie Brinkley and John O'Hurley at the Pantages L.A. premiere of "Chicago"; composers John Williams and Rolfe Kent are the big winners at BMI's Film/TV Awards in Beverly Hills honoring achievements in film and television music; international human rights activist Archbishop Desmond Tutu is honored by Swiss luxury watchmaker Girard-Perregaux. Wednesday night was anything but boring in L.A., so check out all the charity events, stage premieres, awards shows and deep philosophical conversations that went down in this Thursday edition of Last Night's Parties!

Christie Brinkey outside the "Chicago" Opening Night [via] 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»

Lindsay Lohan steps out for Domingo Zapata's Oscars art show; Emmy Rossum and Adrian Grenier attends Global Green USA's 9th annual pre-Oscar party; Eva Longoria hosts a pre-Oscar Flamenco party; Taylor Kitsch, Bella Thorne and Lynn Collins grace the red carpet for the John Carter Los Angeles premiere; Buzz Aldrin graces The Wrap's 2012 pre-Oscar party; Jennifer Aniston is honored with a star on the Hollywood Walk of Fame—the Oscars are right around the corner and we've got your details on Wednesday's pre-awards show fetes, plus the other events that went down across Los Angeles in this installment of Last Night's Parties! More»

Go HERE for more photos by Nik Williamson and tag yourself and your friends!

Here's the thing about Awards weekends: by the time the actual event, in this case the Grammy Awards, rolls around on Sunday, you're already so exhausted from the consistent rush of red carpets, open bars and live exclusive performances that not everybody still has their "A" game left over (see Minaj, Nicki). Luckily, everyone still had enough left in the tank on Friday, when actors and pop stars alike came out for OK! Magazine's pre-party at TRU Hollywood, featuring live performances by Flo Rida and Pia Toscano. More»

[Kirsten Dunst, Elle Fanning via] Emily Blunt, Kate Beckinsale and Colin Firth have date night at the opening of Stephen Merchant's new comedy show on La Cienega; Elle Fanning hosts an intimate dinner at Chateau honoring the Rodarte sisters with Kirsten Dunst, Sophia Coppola and others as guests; The Butterfly Gala takes over the SLS for a night of fashion appreciation and cocktails to benefit Children's Hospital Los Angeles—while most were still pooped from the Golden Globes, see which notables made it out to play last night around town in this edition 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»

If there's a single lesson to be learned from the life and success of Harvey Weinstein, it's probably that it does not always have to be a disadvantage to look like a crazed man who just wandered out of the psych ward at Cedars, provided you play it up right. Yeah, ol' Harv can be a scary fellow, but you've got to admit that the unshaven, haven't-slept-since-1996 look kind of suits the old grizzly bear, who has legendarily used it over the years to intimidate those he seeks to do business with. 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.