Busy Philipps, Ellen Pompeo and other famous mothers give mom-to-be Anna Paquin a taste of what new parent life is like at a Saturday Luau event; Kelly Osbourne, Katherine Jenkins and other transplants from across the pond honor Piers Morgan with a BritWeek celebration; Julie Bowen, Lisa Kudrow and more hit the P.S. Arts Los Angeles Modernism opening night gala; Kim Kardashian steps out in support of Generosity Water—see what else celebrities were up to this weekend when they weren't partying for Cinco de Mayo in this installment of Last Night's Parties. More»

Kim Kardashian, Nicky Hilton and Molly Sims attend the Valentino Rodeo Dr. flagship store opening and 50th anniversary celebration; Michael Jordan kicks off the 11th annual Michael Jordan Celebrity Invitational Golf Tournament with a party at the Aria Casino; "Mamma Mia" opens at the Pantages Theatre with special guests Renee Olstead and Eric Balfour; Brooke Burns celebrates Daniella Clarke's new online shopping experience LuxeYard Style—it was all about fashion and fun at the midweek parties in Los Angeles and we've got all the details on the most fabulous parties and the celebrities who attended them on Tuesday and Wednesday in this installment of Last Night's Parties! More»

Jaime King, Fergie and Chloe Moretz attend JustJared.com founder, Jared Eng's birthday party at Pink Taco; Ke$ha, Rose McGowan and Sophia Bush honor entertainment media that raises awareness on animal issues at the 26th Annual Genesis Awards; Kendra Wilkinson and Kim Kardashian celebrate Perez Hilton's birthday with a Mad Hatter-themed tea party at Siren Studios—the rain didn't stop Los Angeles from partying this weekend and we've got the details on the biggest events and the celebrities who attended them in this installment of Last Night's Parties! More»

Emily VanCamp and Madeleine Stowe give fans a sneak peak of future "Revenge" episodes at PaleyFest; Shannon Elizabeth and Pau Gasol go all in for the World Poker Tour's charity tournament; Nina Dobrev and the rest of the cast of "The Vampire Diaries" give fans the inside scoop at PaleyFest; the cast of "The Bold and The Beautiful" celebrate the show's 25th anniversary; Zoe Saldana and Bryan Cranston step out to watch Dave Matthews perform at John Varvatos' 9th annual Stuart House benefit—it was definitely a busy weekend, especially since we lost an hour to daylight savings, but we've got all the details on the best events in Los Angeles and the notables who attended 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»

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»