Jennifer Lawrence Dances Barefoot on Billy Joel's Piano, Kisses Amy Schumer's Feet

Jennifer Lawrence and Amy Schumer continued to prove they have the best friendship ever on Thursday when they got on stage at the Billy Joel concert in Chicago. The duo, who almost broke the Internet when they went on vacation together earlier this Summer, danced barefoot on stage as Billy sang his classic hit "Uptown Girl." Jennifer even kissed Amy's feet before they hopped on top of the singer's piano to show off their moves. Inside Amy Schumer writer Kyle Dunnigan posted a backstage video of the moment on his Instagram. Kim Caramele, who is Amy's sister as well as a writer and producer, also shared a video of the group doing the cancan in front of the excited audience. "Thursday's with @caramelodies @amyschumer @kyledunnigan1 Oh and jlaw," she captioned one video. Jennifer and Amy's antics come on the heels of the exciting news that the two are writing a screenplay together. Keep reading to see more of the epic onstage cameo, and then check out 14 of Amy's most relatable sketches.