Who composed the music for the musical "School of Rock"?

"School of Rock" is a rock musical with music by Andrew Lloyd Webber, lyrics by Glenn Slater and a book by Julian Fellowes. Based on the 2003 film of the same name, written by Mike White, the musical follows Dewey Finn, an out-of-work rock singer and guitarist who pretends to be a substitute teacher at a prestigious prep school. After identifying the musical talent in his students, Dewey forms a band of fifth-graders, in an attempt to win the upcoming Battle of the Bands contest.

Andrew Lloyd Webber, Baron Lloyd-Webber (born 22 March 1948) is an English composer and impresario of musical theatre. Several of his musicals have run for more than a decade both in the West End and on Broadway. He has composed 21 musicals, a song cycle, a set of variations, two film scores, and a Latin Requiem Mass.

Several of his songs have been widely recorded and were successful outside of their parent musicals, such as "The Music of the Night" and "All I Ask of You" from "The Phantom of the Opera", "I Don't Know How to Love Him" from "Jesus Christ Superstar", "Don't Cry for Me Argentina" from "Evita", "Any Dream Will Do" from "Joseph and the Amazing Technicolor Dreamcoat", and "Memory" from "Cats". In 2001, "The New York Times" referred him as "the most commercially successful composer in history".