Maggie Siff, Robin Weigert, 50 Cent, Sugar Ray Leonard, and other celebs strut the red carpet of premieres for Concussion and Tapia at the L.A. Film Festival; Melissa Leo, Danielle Panabaker, and more hit the The Creative Coalition 2013 Summer Soiree; Metta World Peace, Phil Jackson, and other Lakers fans step out to honor Dr. Jerry Buss; Ashely Olsen, Mary-Kate Olsen, Stacy Keibler, Ashley Madekwe and other fashionistas attend the launch of the Elizabeth And James Fall 2013 Handbag Collection; Jackie Collins and Raquel Welch step out for Terry O'Neill's photo presentation—catch up on L.A.'s top Hump Day happenings in this edition of Last Night's Parties.