Kate Bosworth, Lake Bell and Katie Aselton hit the screening and after party for Black Rock; Kerry Washington, Craig Robinson and David Alan Grier walk the red carpet at the premiere of Peeples; George Lucas helps honor Jeffrey Katzenberg with an award; Kyra Sedgwick and Gabourey Sidibe chat at the Woodcraft Rangers 90th Anniversary Gala; Julie Bowen brings her son Oliver to the LCDQ La Cienega Design Quarter Legends Gala—get caught up on L.A.'s top Hump Day happenings in this edition of Last Night's Parties!

Rebel Wilson, Mark Wahlberg, and Bar Paly get everyone pumped at the Pain & Gain premiere; Heidi Klum, Louise Roe, Betsey Johnson and other network stars pull poses at the 2013 NBC/Universal Summer Press Day; Gerard Butler, Michael Shannon, Winona Ryder, and Sylvester Stallone hit the Iceman premiere and after party; John Cho poses for photos with fans at the "Spirited Away" 47th Anniversary Visionary Awards Fundraiser; the Backstreet Boys are (finally!) honored with their very own star on the Hollywood Walk Of Fame—get caught up on Monday's top happenings all over L.A. in this installment of Last Night's Parties.

Zac Efron shows up on time for Hublot's celebration of new brand ambassador Kobe Bryant; Jon Hamm, Christina Hendricks, Elisabeth Moss and the rest of the "Mad Men" cast turn out for the Season 6 premiere; Jason Bateman and Emma Rossum make memorable appearances at a gala benefiting the Alzheimer's Association; Neil Patrick Harris attends Hollygrove's Norma Jean Gala; Christina Ricci and Rosie Huntington-Whiteley look stunning at the BlackBerry Z10 launch; Leandra Medine, Liberty Ross and Brooke Davenport shop the Christian Dior pop-up at Maxfield—it was a very busy Hump Day here in L.A. and we have the rundown on it all in today's edition of Last Night's Parties.

Nikki Reed and Paul McDonald perform at the launch party for the new Joe Fresh line at JCP; James Franco gets a star on the Hollywood Walk of Fame; Selena Gomez, Conan O'Brien and more supports children's rights at the Beverly Hilton Hotel; Paris Hilton and boyfriend River Viiperi make an appearance at the OUT Fashion LA Fashion Week party—what else went down yesterday? Find out in today's edition of Last Night's Parties.

Olivia Munn, Eva Longoria, Jaime King and more party with Juicy Couture and Vanity Fair; Janina Gavankar, Rachel McDowall and other nominees are recognized at the 6th Annual Toscar Awards; Anne Hathaway, Joel McHale, Steve Martin and a fashionable swarm of A-Listers strut their stuff at the 15th Annual Costume Designers Guild Awards; Mila Kunis is feted as the new brand ambassador for Gemfields; Kirsten Dunst, Kate Walsh, Drew Barrymore, Julianne Moore and many others shine at the celebration of BVLGARI's Elizabeth Taylor jewelry collection; Chloe Moretz, Freida Pinto, Trey Smith and young Hollywood stars party at the Vanity Fair Campaign Hollywood 2013 D.J. Night—get the rundown on Monday and Tuesday's top events around town in this edition of Last Night's Parties.

Josh Duhamel and Julianne Hough walk the red carpet at the Safe Haven premiere; Paul Scheer, Natasha Leggero and others get a little wacky at Season 2 premiere of "Burning Love"; Naomi Watts helps honor Ang Lee at the Visual Effects Society Awards; George Lucas gives Steven Spielberg bunny ears at the Dedication of the Sumner M. Redstone Production Building; Jordin Sparks brunches with the producers of the Grammys; the cast of "The Walking Dead" spends an evening with the Television Academy—get these highlights and more from Tuesday's top events in this edition of Last Night's Parties.

Jennifer Lawrence, Naomi Watts, Steven Spielberg, and others celebrate the Academy Award nominees with The Hollywood Reporter at Spago; Bradley Cooper, Anne Hathaway, Robert De Niro and a bevy of other A-listers enjoy a luncheon honoring the Academy Award nominees; Jason Bateman and Melissa McCarthy attend the premiere for their new movie Identity Thief; The Misshapes spin the RVCA Swimwear Launch Party—get the lowdown on L.A.'s top Monday events in this edition of Last Night's Parties.

Stars like Anne Hathaway, Ben Affleck, Alec Baldwin, Nicole Kidman and many more decked to the nines shine bright at the 2013 Screen Actors Guild Awards and cocktail party; Bradley Cooper, Jennifer Lawrence, Naomi Watts, Robert De Niro and others mingle at The Weinstein Company's SAG Awards after party; Amanda Seyfried, Jessica Alba, Kerry Washington, Bryan Cranston and more walk the red carpet at the 24th Annual Producers Guild Awards; Jon Hamm, Maria Menounos and other celebs step out for Entertainment Weekly's SAG Awards pre-party; Russell Crowe and Quentin Tarantino fist bump at the 2nd AACTA International Awards—get the lowdown on L.A.'s top weekend events in this edition of Last Night's Parties.

Amy Adams, Kerry Washington, Leonardo DiCaprio, Bradley Cooper and more celebrate with the Weinstein Company; Anne Hathaway, Jessica Chastain, Hugh Jackman and other stars party wit NBC/Universal; Damian Lewis, Claire Danes, Zooey Deschanel and other TV actors get down at a post-show party hosted by FOX; Julianne Moore, Lena Dunham, Aaron Sorkin and dozens of other members of the HBO family hit the network's shindig—almost as important as which nominees won Golden Globes last night is where those stars chose to celebrate afterwards and we have the full rundown for you in this special Golden Globes After Party edition of Last Night's Parties.

Jennifer Lawrence, Bradley Cooper, Chris Tucker and more step out for the premiere of Silver Linings Playbook at the Academy of Motion Pictures Arts and Sciences; Ciara performs at the Key Club for the Myspace LIVE Series; Jimmy Kimmel, Julie Bowen, Ty Burrell and other ABC stars honor ABC Entertainment Group's Paul Lee and Bob Broder—get the full rundown on who was out Monday in L.A. in this installment of Last Night's Parties.

Olympic Gold Medalist Lindsey Vonn and All-World Patriots Tight End Rob Gronkowski hit ESPN's The Magazine 4th annual "Body Issue" party; Charlie Sheen rocks out to Slash at The Hard Rock Cafe Hollywood; Christian Bale and Anne Hathaway attend press conference of new movie The Dark Knight Rises—Tuesday night was yet another event-filled night in L.A. and we have all the details on what was popping on July 11th in this edition of Last Night's Parties.

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Lindsey Vonn at the ESPN The Magazine 4th Annual "Body Issue" Party [via] More»