Opened on November 14, 1996 (a 1996 revival). Still running — 11,792 performances when last counted. Chicago is an American musical with music by John Kander, lyrics by Fred Ebb, and book by Ebb and Bob Fosse. Set in Chicago in the Jazz Age, the musical is based on the 1926 play of the same name by Maurine Dallas Watkins, then a journalist covering the city's courthouse beat. A satire on corruption in the administration of criminal justice, the plot follows felons who manipulate their stories to develop celebrity status. Wiki link