Ticket sales for the musical have "soared" since the closing was announced in October of last year, according to the producer. Mackintosh promises this will be the only extension for this historic production, as the Broadway set is due in Berlin for a production of Les Miz.

Additionally, a restoration of The Imperial Theatre must be completed prior to the fall opening of the new musical, The Boy From Oz.

Mackintiosh said in a statement: "Les Miserables continues to surprise me with its extraordinary ability to attract new audiences that never fail to fall under its emotional spell. For the numerous people who've written to me saying they can't visit Broadway to see the show again until the spring, this will be an extra opportunity for them to say, 'Au Revoir.'"

Coinciding with the musical's final weeks, two-time Tony Award nominee and Broadway's original Inspector Javert, Terrence Mann, returns to the role beginning Tuesday, Feb. 4 for a limited time.

Complete details for the closing celebrations of the megahit will be announced in the coming weeks. The new block of tickets (including the 16th Anniversary on March 12) will go on sale starting Saturday morning, Feb. 1. The final five performances (May 15-18) have been taken off sale until final performance events have been finalized.