It's Superman is a 1966 musical composed by Charles Strouse, with lyrics by Lee Adams and book by David Newman and Robert Benton.

[2] Directed by Harold Prince with choreography by Ernie Flatt, it starred Bob Holiday as Clark Kent and Superman, Patricia Marand as Lois Lane, Jack Cassidy as Max Mencken, and Linda Lavin as Sydney.

[5] The show was produced at the Goodspeed Opera House, East Haddam, Connecticut, from June through July 3, 1992, with Gary Jackson (as Superman), Jamie Ross, Veanne Cox and Gabriel Barre.

The cast featured Cheyenne Jackson as Superman, Jean Louisa Kelly as Lois Lane, Richard Kind as Dr. Sedgwick, Patrick Cassidy in his father's old role of Max Mencken, and composer Charles Strouse in a special appearance as Perry White.

Others in the cast included Lea DeLaria as Dr. Sedgwick, Shoshana Bean as Sydney, and David Rasche as Max Mencken.

[9] Kevin Moriarty, the Dallas Theater's artistic director, believed that the show's campy, pop art-inflected book had "not dated well" and approached Charles Strouse in 2008 for permission to revise the musical.

Aguirre-Sacasa moved the musical's setting to 1939, and made the show's primary focus the "love triangle" between Clark Kent, Lois Lane, and Superman.

[11] In November 2009, Moriarty and Aguirre-Sacasa held a private reading of the revised book with the show's surviving creators, Strouse, Adams, and Benton.

The cast included Edward Watts as Superman and Will Swenson as Max Mencken, with Jenny Powers playing Lois Lane.

[14] The show's UK premiere was played in London in March 2014 at Ye Olde Rose and Crown Theatre and was produced by All Star Productions.

[19] The show was broadcast on the ABC network under its Wide World of Entertainment late-night umbrella title to poor critical reception.