Lake Bell, Aisha Tyler and Rob Schneider celebrate the Golden Trailer Awards; Elton John performs for guests like Rod Stewart, Kelly Osbourne, Neil Patrick Harris, Tommy Hilfiger, and more at the Race To Erase MS Gala; Ellen Hollman, Katrina Law and others attend a BritWeek celebration of "Downton Abbey"; Jason Bateman, Portia De Rossi and fellow Bluth family members step out for an "Arrested Development" press event; Amber Valletta, Angie Harmon, Monique Lhuillier and other fashionistas toast the forthcoming Wallis Annenberg Center for the Performing Arts with Ferragamo at Gagosian Gallery; Cobie Smulders, Mike White, and more dance for cancer research—get caught up on the weekend's top happenings in this edition of Last Night's Parties.

US Weekly's Annual Hot Hollywood Style Issue Party draws Chrissy Teigen, Kendra Wilkinson and James Van Der Beek; John Mayer, Flavor Flav, Dave Grohl and others perform and party at the 28th Annual Rock and Roll Hall of Fame Inductee Ceremony; Emily Blunt and Colin Firth premiere Arthur Newman then head to the after party with John Krasinski and others; Jesse Metcalfe and Josh Duhamel make waves at the Planet Ocean premiere party; Liberty Ross, Pixie Geldoof and Louise get some new sunnies at the Foundry and House Of Holland Eyewear Launch—take a gander at the grandeur of Thursday in your thank-god-it's-almost-the-weekend edition of Last Night's Parties!

[Anne Hathaway, Hugh Jackman] [Emily Weiss, Johan Lindeberg] [Quentin Tarantino, Sam Rockwell, Jamie Foxx] [Karlie Kloss, Constance Jablonski]

Last night in NYC, Balmain launched the Le Pierre bag, designed by Olivier Rousteing and Aurélie Bidermann, the Whitney Museum hosted its annual gala, Anna Hathaway honored Hugh Jackman at the 27th annual Museum of the Moving Image salute, Leonardo DiCaprio, Uma Thurman, and Quentin Tarantino graced the red carpet for the "Django Unchained" premiere, and more!

Pop music's hottest  artists including Carly Rae Jepsen, Taylor Swift, Nicki Minaj and Justin Bieber hit the 2012 American Music Awards; Skrillex and Skylar Grey celebrate the AMAs with Interscope; The Wanted performs for Joanna Krupa, Kendra Wilkinson and others at Us Weekly's Music Party; Nikki Reed, Brad Goreski, Jenny McCarthy and many more hit Rolling Stone's AMA after party; Joel McHale, Seth Green and numerous other comedians help Variety honor Seth MacFarlane—get the details on who turned up where during this very busy weekend in L.A. in this edition of Last Night's Parties.

Keira Knightly and costars step out for the Hollywood premiere of Anna Karenina; Drew Barrymore, Ben Stiller, Dita Von Teese and more help Kimberly Snyder launch her new juice bar in West Hollywood; Jesse Tyler Ferguson, Aisha Tyler, Julie Bowen and others celebrate marriage equality; Johnny Depp, Sarah Silverman and Nick Valensi cover Tom Petty and the Heartbreakers hits for charity; GQ hosts their annual "Men of the Year" party at Chateau Marmont with guests Rihanna, Ben Affleck, Aaron Paul and many more; Stevie Nicks performs at The Women's Guild Cedars-Sinai 55th Anniversary Gala—get the rundown on who was out at Tuesday and Wednesday's top events in this double dose of Last Night's Parties.

Judd Apatow, Sean Combs and Ashley Tisdale celebrate the future leaders of the entertainment industry in Beverly Hills with Variety; Jeremy Renner presents Ben Affleck with an award for creativity at the Artois Awards ceremony; Olivia Munn and Jennifer Westfeldt honor women journalists at the Courage in Journalism Awards; Will Ferrell, John C. Reilly and Sarah Silverman step out for the premiere of Wreck-It Ralph—get the full rundown on who was out where Monday in this installment of Last Night's Parties.

LL Cool J, Sophia Bush, and Dennis Quaid strut their stuff on the red carpet at the CBS premiere party in West Hollywood; back to the future with Aerosmith and The Beach Boys, the rock veterans come back for some action to announce upcoming tours; Glamour Magazine and UGG Australia open up a new UGG flagship store in Costa Mesa—catch up on what went down Tuesday in this edition of Last Night's Parties. More»

LL Cool J, Sophia Bush, and Dennis Quaid strut their stuff on the red carpet at the CBS premiere party in West Hollywood; back to the future with Aerosmith and The Beach Boys, the rock veterans come back for some action to announce upcoming tours; Glamour Magazine and UGG Australia open up a new UGG flagship store in Costa Mesa—catch up on what went down Tuesday in this edition of Last Night's Parties. MORE>>

Hennessy busts out some major party jams courtesy of live performances by Santigold and Diplo for a rager at Milk Studios; Kate Beckinsale, Jessica Biel, Colin Farrell and Bryan Cranston bring superstar power to the red carpet at the Total Recall Hollywood premiere and after party; exciting news regarding Larry David and HBO's "Girls" is delivered at Day 12 of the Summer TCA Press Tour—get the details on L.A.'s biggest midweek festivities in this edition of Last Night's Parties. More»

David Duchovny, Emmy Rossum, Sophia Bush and many more hit The CW, CBS and Showtime's Summer TCA Tour Party; Claire Danes and Bryan Cranston step out for the 28th Annual Television Critics Association Awards in Beverly Hills; Maria Menounos and Derek Hough show off their fancy footwork at a charity gala; Nigel Lythgoe joins the British Consul at her home for a launch celebration of the London Olympics—get the rundown of the weekend's biggest events around L.A. in today's installment of Last Night's Parties. More»

Olivia Munn, Aisha Tyler and others hit up a special screening of The Babymakers at the Silent Movie Theatre; Matthew Perry, Jamie-Lynn Sigler and many more from NBC/Universal's camp kickoff the network's two-day turn on the 2012 Summer TCA Press Tour; Samsung and UrbanDaddy partner up to throw a Picture Perfect Evening on the Andaz roof—it all went down Tuesday in L.A. and we have your details in this edition of Last Night's Parties. More»