CHICAGO, Aug. 28 (UPI) -- Actresses Jennifer Lawrence and Amy Schumer made a surprise appearance at a Billy Joel concert Thursday night.
Lawrence, 25, and Schumer, 34 -- who wore casual clothes for their Chicago cameo -- walked on stage with several others during the singer's final song: "Uptown Girl." Eventually, the duo -- who recently announced they're working on a screenplay together -- climbed on top of Joel's piano barefoot and danced.