 The musical was based on an original concept by Melanie Mintz, and the book (referred to as the "liner notes") was written by Anne Beatts, with additional material by Jack Heifner.The musical had a brief Off-Broadway run in 1984, followed by a 120-performance Broadway run in 1985.The Broadway production had a lengthy preview period, during which the musical was retooled and much of the spoken dialogue was cut, turning "Leader of the Pack" into more of a revue.