High School Musical: The Musical – The Series: Created by Tim Federle. With Olivia Rodrigo, Joshua Bassett, Matt Cornett, Larry Saperstein. The students from the school where the High School Musical films were shot stage a musical production based on the franchise. A group of East High students countdown to the opening night of their school’s first-ever production of “High School Musical.” Showmances blossom; friendships are tested while new ones are made; rivalries flare and lives are changed forever as these young people discover the transformative power that only a high school drama club can provide.