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.

Russell Simmons Mario Lopez Heidi Klum Amaury Nolasco Eric Balfour Betsey Johnson Anthony Mackie Pete Wentz Zach Braff Nick Cannon Nick Lachey Kelsey Grammer Mark Wahlberg Scott Hicks Vivica A. Fox Rob Riggle Winona Ryder Sylvester Stallone Michael Bay Paz Vega Howie Mandel Cheryl Burke Roxane Mesquida John Cho Walk of Fame Louise Roe Lulu Johnson Tony Shalhoub Christopher Scott Christina Milian Nancy O'Dell Meredith Ostrom Anne Sweeney Michael Shannon Bella Thorne Rob Corddry AJ McLean Howie Dorough Nick carter Brian Littrell Ken Jeong Jess Weixler Rebel Wilson Ed Harris Dante Basco Angela Kinsey Rhea Durham Jaimie Alexander ArcLight Hollywood Jesse Spencer Christa Campbell Taylor Kinney The Beverly Hilton hotel Barrett Foa Ray Liotta jeannie mai Nana Meriwether Arden Myrin Amy Madigan Amy Hill Ryan O'Nan Carly Craig Nathalie Kelley Robert Davi Weronika Rosati Parvesh Cheena Sumner Redstone Kevin Richardson A. J. McLean Melanie Brown Brad Grey Bar Paly Morgan Fairchild The Langham Huntington Hotel and Spa Peter Stormare TCL Chinese Theater Monica Potter Hana Nitsche Dick Wolf Pain and Gain Sophia Myles Yolanthe Cabau van Kasbergen "Pain and Gain" Los Angeles Premiere Magnus Scheving Jamie Murray Joanne Kelly 2013 NBC Summer Press Day The Help Group's Annual Teddy Ball Honoring Stephen Davis President Of Hasbro Studios Debby Boone McKaley Miller Ariel Vromen Premiere Of Millennium Entertainment's The Iceman and After Party The Iceman Daniel Dae Kim Hilton Universal City "Spirited Away" East West Players 47th Anniversary Visionary Awards Fundraiser Dinner And Silent Auction Backstreet Boys Honored with Star On The Hollywood Walk Of Fame Max Martin