Justin Timberlake, Jessica Biel, Timbaland and Amy Adams attend Darren Le Gallo's art opening; Flo Rida and Kendra Wilkinson debate on who wore it better at OK! Magazine's pre-Grammy party; John Legend and Christina Milian hang with the Mayor at a music industry reception; L.A. Reid, Jeffery Katzenberg and Ciara party at Beacher's Madhouse with Epic Records; Gary Oldman, Harrison Ford and Billy Bob Thornton celebrate the opening of the Morrison Hotel Gallery by forming the ultimate boy band—okay, so they didn't form a boy band, but it's fun to pretend while getting the rundown on Thursday's top events in this installment of Last Night's Parties.

Jordana Brewster, Julie Bowen and Angie Harmon dazzle in Naeem Khan dresses at a Chateau Marmont private party hosted by the designer; Eva Mendes struts her summer look at a special screening of her new indie film; Sarah Silverman, Jimmy Kimmel, Adam Carolla, Patton Oswalt, Jeffery Ross and other big-time comedians rock a power-packed comedy show to raise money for ALS research; Last Night's Parties had stars all over the place for charity, fashion and just plain fun. We've got all the details, so don't miss out! More»

"90210's" Shenae Grimes hosts the launch of Chinese Laundry Fashion Denim at Eden; Eddie Cibrian, Adrien Brody and others practice their racing line at the 36th Annual Toyota Pro/Celebrity Charity Race practice day; Gene Simmons hosts an opening day party for his new backstage concert-themed restaurant, Rock & Brews—get the lowdown on who partied where at Tuesday's top events in L.A. with this installment of Last Night's Parties! More»