Watch Wicked Stars McKenzie Kurtz and Alyssa Fox Duet on Heartfelt 'For Good' on Good Morning America

The international hit musical Wicked, which offers a special 20th anniversary performance at Broadway's Gershwin Theatre October 30, was also recently celebrated on ABC's Good Morning America.

Current stars Alyssa Fox and McKenzie Kurtz joined forces for "For Good," while the entire company performed "One Short Day." Watch the two performances above and below.

READ: All the Women Who Have Played Glinda and Elphaba in Wicked on Broadway

The 20th anniversary festivities are scheduled to conclude October 31 at the New York Public Library for the Performing Arts with a free panel discussion about the creation of the global blockbuster. Panelists will include Wicked composer-lyricist Stephen Schwartz, librettist Winnie Holzman, and producer David Stone.

Photos: 9 Wicked Secrets of the Gershwin Theatre

Wicked's Broadway cast currently features Fox as Elphaba, Kurtz as Glinda, John Dossett as The Wizard, Michele Pawk as Madame Morrible, Jordan Litz as Fiyero, Jake Pedersen as Boq, Kimber Elayne Sprawl as Nessarose, and William Youmans as Doctor Dillamond.

READ: Alyssa Fox and McKenzie Kurtz Starred in Frozen Together, Now They've Reunited in Wicked

Wicked began previews on Broadway October 8, 2003, with an official opening October 30. The original cast included Tony winners Idina Menzel and Kristin Chenoweth as, respectively, the green-faced, misunderstood Elphaba and the curly-locked Glinda.

READ: 11 Elphabas Reflect on Playing Broadway's Not-So-Wicked Witch

Wicked, with music and lyrics by Schwartz and a book by Holzman, is based on the novel Wicked: The Life and Times of the Wicked Witch of the West by Gregory Maguire.

The Joe Mantello-helmed production features musical staging by Wayne Cilento, scenic design by Eugene Lee, costume design by Susan Hilferty, lighting design by Kenneth Posner, sound design by Tony Meola, projections by Elaine J. McCarthy, wig and hair design by Tom Watson, music supervision and arrangements by Stephen Oremus, orchestrations by William David Brohn, and dance arrangements by James Lynn Abbott. Casting is by the Telsey Office.

Photos: Broadway's Wicked Celebrates 20th Anniversary at the Plaza

Wicked won 2004 Tony Awards for Best Actress in a Musical (Menzel), Best Costume Design (Hilferty), and Best Scenic Design (Lee).

The musical, which reopened on Broadway September 14, 2021, following the pandemic shutdown, is produced by Marc Platt, Universal Stage Productions, The Araca Group, Jon B. Platt, and David Stone.