Chicago is a musical with music by John Kander, lyrics by Fred Ebb and a book by Ebb and Bob Fosse. Set in Prohibition-era Chicago, the musical is based on a 1926 play of the same name by reporter Maurine Dallas Watkins about actual criminals and crimes she reported on. The story is a satire on corruption in the administration of criminal justice and the concept of the "celebrity criminal."
The original Broadway production opened in 1975 at the 46th Street Theatre and ran for 936 performances until 1977. Bob Fosse choreographed the original production, and his style is strongly identified with the show. Following a West End debut in 1979 which ran for 600 performances, Chicago was revived on Broadway in 1996, and a year later in the West End.
The Broadway revival holds the record as the longest-running musical revival and the longest-running American musical in Broadway history, and is the second longest-running show in Broadway history, behind only The Phantom of the Opera, having played its 7,486th performance on November 23, 2014, surpassing Cats.