The Phantom of the Opera is a musical by Andrew Lloyd Webber, based on the novel by French novelist Gaston Leroux. The music was composed by Webber, with lyrics by Charles Hart and additional lyrics by Richard Stilgoe. The musical focuses on a beautiful singer, Christine Daaé, who becomes the obsession of a mysterious, disfigured musical genius known as "The Phantom of the Opera," who terrorizes the Paris Opera. Inspired by an earlier musical version of the same story by Ken Hill, "Phantom" opened at Her Majesty's Theatre in London on October 9, 1986, where it is still playing as of 2007.