Popsugar Entertainment Netflix Netflix's The Prom Musical Movie Cast The Star-Studded Cast For Ryan Murphy's The Prom Adaptation Will Make Your Jaw Drop 11 October 2019 by Kelsie Gibson View On One Page Photo 5 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Ariana Grande as Alyssa The "Thank U, Next" singer will play a popular girl in school whose mother is the head of the PTA. Previous Next Start Slideshow NetflixMovie CastingMoviesRyan Murphy