Les Misérables is a musical by Claude-Michel Schönberg, based on the novel of the same name by Victor Hugo.
The music was composed by Schönberg, and the lyrics were written by Alain Boublil and Jean-Marc Natel, with an English-language libretto by Herbert Kretzmer. Set in early 19th-century France, the plot follows the stories of many characters as they struggle for redemption and revolution. An ensemble that includes prostitutes, student revolutionaries, factory workers, and others joins the lead characters.
The musical opened at the Barbican Centre in London, England on 8 October 1985. It is the longest-running musical in the world. It is also the third longest-running show in Broadway history. In January 2010, it played its ten-thousandth performance in London, at Queen's Theatre in London's West End.