Witherspoon makes a pit stop in Brentwood, Calif. Plus: Mariah Carey, Paul Rudd, the Mad Men cast and more


The gang's all here! The cast of Mad Men – Aaron Staton, Rich Sommer, Christopher Stanley, Elisabeth Moss, Ben Feldman, January Jones, Jay R. Ferguson and Jon Hamm – reunite for the Paley Center for Media's annual Los Angeles benefit Monday night in West Hollywood.