Of course, Schumer was joking (we think!), as she explained his music actually played a big part in her hit movie Trainwreck, and Joel himself invited her on stage when she attended the concert with her family, Lawrence and Inside Amy Schumerwriter Kyle Dunnigan. “He said, ‘Why don’t you come up and sing ‘Uptown Girl’?” As for Lawrence’s part in the piano dance, Schumer, who was joined on the red carpet by her sister Kim Caramele, who is a writer and producer on Schumer’s show, said, “I was like, ‘You have to come up with me!’ And she was like, ‘Are you sure?! And I was like, ‘I am!’ So that’s it!”