Actresses Ann Reinking and Bebe Neuwirth are heading back to the New York revival of Chicago to help celebrate the show becoming the second longest-running production in Broadway history.
Reinking, who also choreographed the musical, took centre stage as Roxie Hart when it first opened in May, 1996, alongside Neuwirth as Velma Kelly, Joel Grey as Amos Hart and James Naughton in the role of Billy Flynn.
Now all four original stars will return to the Great White Way for cameos on 23 November (14) for a special performance to mark the theatre record.
Chicago, which will have racked up 7,486 performances in 18 years by the time the curtain falls on the November show, will take over the second-place title from Cats, which recorded 7,485 shows on Broadway between 1982 and 2000.
However, the 1920s-based musical still has a way to go to claim the top honour - that is held by another Andrew Lloyd Webber production, The Phantom of the Opera, which is still running at the Majestic Theatre after more than 11,000 performances since 1988.