Broadway's 'Chicago' to celebrate making history

By MARK KENNEDY | August 26, 2011 | 6:50 AM EDT

In this theater image released by The Publicity Office, from left, Ryan Worsing, Charlotte d'Amboise and Michael Cusumano are shown during a performance of the musical "Chicago," in New York. The matinee performance on Aug. 27, 2011 will mark the musical's 6,138 show, meaning it vaults over "A Chorus Line" to become the fourth longest-running show in Broadway history. (AP Photo/The Publicity Office, Jeremy Daniel)

NEW YORK (AP) — The cast of "Chicago" plans to celebrate their show reaching a Broadway milestone a day early.

The actors and crew will host a small backstage party at intermission during Friday evening's performance to mark the moment when it becomes the fourth longest-running show in Broadway history.

The cake-cutting and champagne toast will technically be a little premature: The matinee on Saturday will actually be the show's 6,138th performance, the moment it jumps over the original version of "A Chorus Line" into the record books.

The achievement also means "Chicago" becomes the longest-running American show in Broadway history. Ahead of it are "The Phantom of the Opera," ''Cats" and "Les Miserables," all British imports.