Common performs for Olivia Munn and Kim Kardashian to celebrate the USA Basketball team and Jeep; Will Ferrell, Michael Chow and other big supporters of LACMA attend the annual Collectors Committee dinner gala and view the new works of the permanent collection; Tobey Maguire, Ben Affleck and more show support for arts education at the Children Mending Hearts Spring Benefit; Ian Somerhalder hosts a private charity dinner event in Bel Air; Johnny Knoxville, Julie Bowen and Anthony Kiedis celebrate Earth Day at the Annenberg Community Beach House—it was another busy weekend of events and fundraisers here in L.A. and we have the details on what went down in this edition of Last Night's Parties. More»

Fergie and Josh Duhamel celebrate the launch of Don "DB" Brooks' Don-A-Matrix Training method; AnnaLynne McCord is honored at the Drawing Hope International Masquerade Gala; "Grey's Anatomy" hosts The Songs Beneath The Show benefit party; the beautiful people of "90210" have a Season 4 wrap party at Pink Taco; Jane Lynch hosts the kick-off event for Adopt The Arts; Julia Roberts and Lily Collins step out for the Los Angeles premiere of Mirror Mirror—St. Patrick's Day wasn't the only reason to have a party over the weekend, and we've got all the details on the biggest events that went down in Los Angeles and the notables who attended them in this edition of Last Night's Parties! More»

Jennifer Aniston, Paul Rudd and Justin Theroux step out for the premiere of the new Judd Apatow film in Westwood; Kristin Cavallari shows off her non-baby bump at the launch of Glamhouse hosted by Perez Hilton; the NAACP holds the annual Image Awards Pre-Show Reception in Century City—get your final dose of L.A. event roundups before the three-day weekend in today's 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»

Dennis Quaid and Aimee Teegarden step out for Beneath The Darkness; Emily Blunt kicks off a Palm Springs Film Festival; Emmy Rossum, William H. Macy, Kristen Bell, and more celebrate two Showtime original series premieres; Ewan McGregor, Channing Tatum hit the Haywire premiere and after party hosted by Playboy—Wednesday and Thursday night were all about the business we call show here in L.A. and we have all the details in this pre-weekend edition of Last Night's Parties. More»

Topher Grace, Sunny Mabrey, Abigail Spencer and others celebrate 160 years of Bally's Swiss Heritage (and benefit a worthy children's cause at the same time); Jennifer Love Hewitt, Melissa Joan Hart and a full complement of Bravo stars including a special selection of both Kardashians and Real Housewives strap on their ice skates for a Disney On Ice skating party at LA Live; Common takes the stage at a progressive design showroom; and Samantha Ronson DJ's Rachel Zoe's holiday party—for all the details, check out this especially design-oriented edition of Last Night's Parties. More»

Justin Timberlake, Jessica Biel and a pregnant Hilary Duff step out to support brain cancer awareness and medical research; Jon Hamm, Jenna Fischer, Nicole Richie and Eli Roth go to Spare Room to party for Mindy Kaling's new book; a very Twi-tastic premiere after party for Breaking Dawn takes a turn for the 90s with a mini Can't Hardly Wait reunion—L.A. was buzzing with events here and there on Monday, get the details in this edition of Last Night's Parties. More»