A Chorus Line is a musical with music by Marvin Hamlisch, lyrics by Edward Kleban and a book by James Kirkwood, Jr. and Nicholas Dante. A CHORUS LINE is a stunning musical-verite about a chorus audition for a Broadway musical. It tells of the achingly poignant ambitions of professional Broadway gypsies to land a job in the show, and is a powerful metaphor for all human aspiration. Memorable musical numbers include I Can Do That, At the Ballet, Dance: Ten; Looks: Three, The Music and the Mirror, What I Did for Love, One (Singular Sensation) and I Hope I Get It. It is a brilliantly complex fusion of dance, song and compellingly authentic drama.

Following several workshops and an Off-Broadway production, A Chorus Line opened at the Shubert Theatre on Broadway on July 25, 1975, directed and choreographed by Buffalo native Michael Bennett. An unprecedented box office and critical hit, the musical received 12 Tony Award nominations and won 9 of them, in addition to the 1976 Pulitzer Prize for Drama.

The original Broadway production ran for 6,137 performances, becoming the longest-running production in Broadway history until surpassed by Cats in 1997, and the longest-running Broadway musical originally produced in the US, until surpassed in 2011 by Chicago. It remains the sixth longest-running Broadway show ever.