The Los Angeles Gay and Lesbian Center presents Rachel Zoe with an award for her work with homeless youth; Sam Worthington and Elizabeth Banks grace the red carpet for the Man On A Ledge premiere; Jodi Lyn O'Keefe launches her new jewelry line "Q"; Marg Helgenberger from "CSI: Crime Scene Investigation" gets a star on the Hollywood Walk of Fame—it was just another Monday night in Los Angeles and we have your details in this installment of Last Night's Parties! More»

Jeffrey Katzenberg, Chris Miller, Salma Hayek, Antonio Banderas

Salma Hayek and Antonio Banderas help launch Awards Season at Chateau; Dolly Parton and Queen Latifah hit their Hollywood movie premiere; Patrick Dempsey attends the McLaren Beverly Hills opening; Disney ABC host a Winter Press Tour with Krysten Ritter, Andie McDowell, and Leslie Bibb; Forevermark and InStyle take over Bar Nineteen12 at the Beverly Hills Hotel for a party with Michelle Williams, Jessica Alba, and other leading Hollywood ladies—Monday and Tuesday night were bustling with events all over the city, get the details on what went down in this edition of Last Night's Parties. More»

Lea Michele, Ashton Kutcher

Zac Efron, Michelle Pfeiffer and Katherine Heigl hit the premiere of New Year's Eve while Lea Michele and Ashton Kutcher dish out some vom-worthy red carpet PDA theatrics; Jane Lynch, Alec Baldwin and Will.i.am celebrate 30 years of People For The American Way; Anne Heche and Alia Shawkat attend a Sundance Institute mixer; Carmen Electra and others get pampered to support P.S. ARTS—it was a fully-loaded Monday here in L.A., let's talk about it in this edition of Last Night's Parties. More»

Fred Astaire. Humphrey Bogart. Clint Eastwood. Since 1927, when Sid Grauman opened his iconic Chinese Theatre on Hollywood Boulevard, the brightest stars of the movie industry have had their hand or footprints immortalized on concrete plots in the courtyard, a testament to their ongoing fame and talent. So if Grauman's was breaking with 84 years of "movie stars only" tradition to include a musician, you'd imagine the list of candidates would be impressive. Mick and Keith, maybe? Bob Dylan? Dr. Dre? Nah, how 'bout a French house DJ whose most famous song is called "Sexy Bitch"? 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»

Rachel Zoe, Gwen Stefani in white lab coats

Kendall and Kylie Jenner, Decades boutique are the big winners at the Hollywood Style Awards; Pink shows off her new baby Willow with husband Carey Hart at the premiere of Happy Feet Two; Gwen Stefani wins our pick as best dressed of the weekend despite the mandatory lab coats at the annual MOCA Gala which was a strange affair by all accounts; Tilda Swinton, Sharon Stone help the Academy honor Oprah; Amy Adams and Jason Segel party with Miss Piggy at The Muppets Premiere; 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.

Neil Patrick Harris, Mena Suvari, Kal Penn and John Cho step out for a 3D holiday Harold & Kumar movie premiere; Vionnet and Saks Fifth Avenue take over Mr. Chow for a champagne fashion party; Decades hosts an intimate book signing for InStyle editor Hal Rubenstein's new hardcover fashion tome; Nia Vardalos, Jason Ritter and more attend the Art & Soul book release and signing celebration at Sony—get the details on what went down in L.A. Wednesday in this installment of Last Night's Parties.

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