Barry Manilow and Cody Simpson perform at L.A. Live to benefit non-profit organizations for hunger and light the Holiday Tree; Gerard Butler, Dennis Quaid and other stars of Playing For Keeps attend a screening to benefit Children's Hospital Los Angeles; "Real Housewives of Beverly Hills" gather at Kyle by Alene Too to support the Bullets 4 Peace Charity; Kristin Stewart, Elle Fanning, William H. Macy, Garrett Hedlund and more visit a private residence for the first day of the Variety Studio: Awards Edition presented in partnership with Rolls Royce and Nintendo—get the details on who was out where yesterday in this installment of Last Night's Parties!