Jack Black and Shirley McLaine ham it up for the cameras at the premiere of their new movie; Kim Kardashian, Busy Philipps and more step out for Us Weekly's Hot Hollywood Style Issue event at Greystone; ASCAP presents their 2012 Pop Music awards to Katy Perry, Carly Simon, David Guetta and others; Emma Roberts and Julia Roberts make a movie premiere a stylish family affair; Rihanna sings for Steven Spielberg, Rita Wilson and many others in Hollywood to benefit breast cancer research—L.A. was hopping with events all over town Wednesday night and we have your details on the best ones that went down in this edition of Last Night's Parties.

Steven Spielberg, Rihanna, Sheryl Crow [via]

Aubrey O'Day Katy Perry Emma Roberts Cameron Richardson Julianne Hough Ne-Yo moby Shannen Doherty Rosario Dawson Bagatelle Cindi Leive Rihanna Samantha Mathis Jack Black Kim Kardashian Rita Wilson Steven Spielberg Rumer Willis Jamie Tisch Ludacris Sheryl Crow Trent Reznor Martin Short Kellan Lutz Catt Sadler Ben Hollingsworth julia roberts Lisa Kudrow Amber Valletta Carly Simon Gela Nash-Taylor David Guetta Steve Tyrell Kendra Wilkinson Peter Frampton Kirk Douglas Gretchen Rossi Shirley Maclaine Lori Loughlin beverly hilton hotel Maksim Chmerkovskiy monica Kate Capshaw Olivia Munn Joel Silver Richard Linklater Pippa Black Carmen Electra Barbara Davis Jennifer Morrison Thora Birch Bruno Mars Adrienne Maloof Ali Fedotowsky Rachel Leigh Cook John Hawkes Autumn Reeser JESUS HENRY CHRIST Dennis Lee Busy Philipps Chelsea Kane Peta Murgatroyd Michael Sheen Paul Nassif Beth Behrs Gelila Puck Thomas Kretschmann Cathy Schulman Jennifer Gimenez Lois Aldrin Mann Chinese 6 Steve Tisch Danica Perez ArcLight Hollywood Holly Marie Combs Jon Mack Natalie Maines Scottie Thompson Bonnie Somerville Catherine Bach Mei Melancon Greystone Manor Supperclub Catherine Hardwicke George Schlatter Jolene Schlatter Mark Deklin Fiona Gubelmann Josh Hopkins Erica Rose Dan Wilson Jeta Amata Mbong Amata Black November Virginia Williams Vanessa Getty Black November Screening Joshua Frederic Smith Kem Anyanwu Shannon Collis