Best known for hit musicals like Cats and Evita, British composer Andrew Lloyd Webber signed with a Hollywood agent in hopes of launching an American reality-TV show that would search for an unknown to star in one of his stage productions. NBC's Grease: You're the One That I Want similarly cast two roles for an upcoming Grease revival and was a ratings disappointment. But Lord Lloyd-Webber (his title since 1997) is hoping to replicate the success of Any Dream Will Do, his U.K. reality-show casting call that aired earlier this year.