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»

Jean Dujardin beats George Clooney for best actor and Mary Tyler Moore receives lifetime achievement award at the 18th Annual Screen Actors Guild Awards; Sofia Vergara and Meryl Streep have fun with friends at the Weinstein Company and Dewar's post-SAG Awards cocktail party at the Chateau Marmont; Amber Heard dazzles fans on the red carpet as Kelsey Grammer hosts the 64th Annual Directors Guild of America Awards; Katy Perry and professional party girl Paris Hilton kick off the grand opening of 1 OAK Las Vegas; More»

Sundance 2012 is off and running - and despite the icy storm that covered Salt Lake City, party hoppers bounced from place to place successfully. From Drake's performance at the Bing Bar, to Lil' Jon and Paris Hilton hanging out at Tao, to the Bertalli Meal Soup Chalet, to Marina Ambramovic's silent party, to the "Black Rock" dinner party and more, Sundance's parties were all about the film buffs. 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>>

Miranda Kerr, Kate Winslet and Guy Pearce kick-off Australia Week; Kirsten Dunst, Brittany Snow, Elijah Wood and many others step out for The Art of Elysium; Sean Penn, Julia Roberts, Leonardo DiCaprio and more help raise funds for the Haiti relief effort; BAFTA hosts a tea party for awards season with Michelle Williams, Charlize Theron and a slew of other notables; Aziz Ansari, Paul Rudd and Seth Rogen throw their star power behind Hilarity for Charity to benefit the Alzheimer's Association—it was a fully-loaded weekend of star-studded events in L.A. that had (almost) nothing to do with the Golden Globes and we have the details in this edition of Last Night's Parties. 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»

Isabel Lucas, Henry Cavill, Freida Pinto [via]

AFI Fest continues with Thomas Jane, Rob Lowe, and Jeremy Piven's film screening; Aussie import Isabel Lucas rocks the red carpet for the Immortals 3D premiere with Kellan Lutz, Freida Pinto and Mickey Rourke; Garcelle Beauvais, Jennifer Love-Hewitt and more get pampered on the roof of The London; Zooey Deschanel and our new favorite dresser Ashley Madekwe, along with may others, step out for TV Guide's "Hot List Party" in West Hollywood—it was just another Monday in L.A. but there was plenty of action so get all the details in today's installment of Last Night's Parties.

[Rachel Zoe, Iman, Quincy Jones, Margherita Missoni, Peri Ellen Berne photo via AB Images courtesy of C&M Media Ltd.]

Rachel Zoe and Quincy Jones present awards to Iman and Missoni on Rodeo Drive; Hollywood's rising stars get recognized for giving back at Variety's 5th Annual Power Of Youth Event; Zoe Saldana hosts Gen Art's Fresh Faces in Fashion downtown; Elisabetta Canalis joins Chaz Bono for his GLSEN Respect Award ceremony— More»