Jennifer Lawrence and Leonardo DiCaprio toast champagne while Charlize Theron and Bill Clinton trade fedoras backstage at the GLAAD Media Awards; Demetri Martin and Molly Ringwald debut their tomes at the Festival of Books; David Arquette and James Van Der Beek attend the Ballet Rubies Gala; Jeffrey Deitch, Ellen Pompeo and Terry Richardson hit up the "Yesssss!" 2013 MOCA Gala; the brothers Hemsworth aren't too cool for school at the City Year Los Angeles' Spring Break: Destination Education Party—were you at Coachella Weekend 2? These celebs weren't either. Check them all out at L.A.'s top events in this weekend edition of Last Night's Parties.

Kerry Washington announces the team's starting lineup at Dodger Stadium; Ken Marino, Thomas Lennon, Ryan Hansen and others in the comedy world step out for the Season 3 premiere of "Burning Love: Burning Down The House"; Jessica Pare celebrates covering the Spring Issue of LA Confidential magazine at Seven Grand; Viola Davis, Octavia Spencer and more attend the Jenesse Center's 2013 Silver Rose Gala event; Sarah Hyland, Matt Prokop and other stars hit Skip1.org's "Skip and Donate" gala—get the rundown of the weekend's top events across L.A. in this edition of Last Night's Parties.

Following a fully-loaded week of pre-parties in anticipation of the 2013 Oscars, last night boasted some of the most lavish, star-studded events of the year for the final hurrah of awards season. Between the annual Governors Ball, Vanity Fair party and Elton John's Viewing party, all of Hollywood came out to celebrate the 85th Annual Academy Awards and we have the guest lists, photos and details from inside for you in this special Oscar Night edition of Last Night's Parties.

Sundance 2013 kicked off this weekend, and film buffs flocked to Park City again this year. From Dave Groh's sold-out concert at Park City Live with Stevie Nicks, to Jessica Biel and Ringo Starr hanging out at The Westway, to Avicii and Matisyahu's blow out performances, here is a round up of some of the top bashes from Sundance's first weekend.

Lindsay Lohan endorses Mitt Romney (yes, yes she did) at the launch of a new ginseng drink; Katy Perry sings for Kate Hudson, Sarah Jessica Parker, Chelsea Handler and more at the amfAR gala and helps it raise  $1.3 million in a single night; the GRAMMYs present a special tribute show to Whitney Houston with performances from Usher and Jennifer Hudson; Kyle Richards celebrates her Beverly Hills boutique's grand opening with Lisa Vanderpump and Whitney Port—laugh, cry and feel lots of emotions in between as we bring you the Thursday event rundown in this installment of Last Night's Parties.

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»

After last year's James Franco high-as-a-kite fiasco, the Oscars decided to keep things especially PG this year with Billy Crystal,  Justin Bieber, Cirque du Soleil, and the theme of "At The Movies." But live TV spares no one, and even though the ceremony lagged (as per usual) and was severely disappointing in terms of Scorsese's Hugo sweeping the heap, there were some very awesome moments that need to be discussed. From Angelina Jolie's right leg, to J.Lo's nipple/non-nipple, and Bridesmaids taking shots, check out the very best of the Oscars 2012.

Amy Adams and Malin Ackerman attend Vanity Fair's 20th Anniversary Party; Taylor Swift and Zac Efron attend the L.A. premiere of "Lorax"; Bryan Cranston and Joel McHale honor writers; Emmanuelle Chriqui, Lance Bass and others perform in a 24 hour stage production; David Beckham wins at Cartoon Network's Hall Of Game Awards; Sofia Coppola hosts a launch party at Sowden House for the new Marni for H&M Collection—awards season is still in full swing and we've got the details on the weekend's parties in and around Los Angeles and the stars who attended in this edition of Last Night's Parties! More»

With the Oscars less than ten days away, all eyes are on Viola Davis and Octavia Spencer for their star-making performances in The Help.  The actresses have racked up critical praise and a slew of awards for their roles of Aibileen Clark (Davis) and Minnie Jackson (Spencer), two African-American maids in white homes in 1960s Mississippi.  Now, Davis and Spencer are the frontrunners in the Oscar race for Best Actress and Best Supporting Actress, respectively, and we wish them all the best! In celebration of their nominations and Black History Month, we compiled a retrospective of past winners. More»

Josh Duhamel, Harry Shum Jr. and Chloe Moretz celebrate the launch of Sony's new PS VITA portable entertainment system with a party at Siren Studios; Nathan Lane hosts USA Network and The Moth's Storytelling Tour: A More Perfect Union: Stories of Prejudice and Power; Disney premieres its new made for TV movie, Radio Rebel, at the AMC CityWalk theater inside Universal Studios; Sports Illustrated and covergirl Kate Upton celebrate the annual "Swimsuit Edition" with a party at Haze Nightclub at the Aria Casino in Las Vegas—Wednesday was quite the day with new videogames, inspiration for our youth and gorgeous swimsuit models and we've got all the details on the events that took place in and around Los Angeles in this edition of Last Night's Parties! More»