What is the name of the international company set up in 1977 by English composer and impresario of musical theatre whose well-known works include "The Phantom of the Opera" and "Jesus Christ Superstar"? 
Really Useful Group: The Really Useful Group Ltd. (RUG) is an international company set up in 1977 by Andrew Lloyd Webber. Andrew Lloyd Webber: Andrew Lloyd Webber, Baron Lloyd-Webber (born 22 March 1948) is an English composer and impresario of musical theatre. Andrew Lloyd Webber:  Several of his songs have been widely recorded and were hits outside of their parent musicals, notably "The Music of the Night" from "The Phantom of the Opera", "I Don't Know How to Love Him" from "Jesus Christ Superstar", "Don't Cry for Me, Argentina" and "You Must Love Me" from "Evita", "Any Dream Will Do" from "Joseph and the Amazing Technicolor Dreamcoat" and "Memory" from "Cats".
Really Useful Group