Portman gives a gracious wave to fans outside the Letterman studios in N.Y.C. Plus: Kate & Will, Leo, Justin Timberlake, Kourtney Kardashian, Will Ferrell and more

NO HOLDING BACK

Jessica Chastain can't hide her delight at the "Evening with Karl Lagerfeld" tribute Wednesday at N.Y.C.'s Lincoln Center, where the actress interviewed the Chanel creative director during a chat that benefited performing arts programs.