Director Jon M. Chu explains the secret filming of 'Wicked' cameo from original Broadway stars Idina Menzel and Kristin Chenoweth. Interview.

Anyone who knows anything about Wicked is likely aware of how big a role the awe-inspiring voices of, and natural chemistry between, original Broadway stars Idina Menzel and Kristin Chenoweth played in turning the musical into an instant mega-hit.

This story contains spoilers for “Wicked,” now playing in theaters. Idina Menzel and Kristin Chenoweth have found their way back to Oz. Broadway’s original witches make a surprise appearance in director Jon M.

“There was no world where we wouldn’t invite them to come be a part of this,” director Jon M. Chu tells The Hollywood Reporter. “The question for us was, how, and how much are they willing to do in it, and how much can the story itself handle it? Because they’re such iconic people and especially to these roles.”

Wicked Cast REACTS to Idina Menzel and Kristin Chenoweth’s SURPRISE Cameos! (Exclusive) 'Wicked's Ariana Grande, Cynthia Erivo, Jonathan Bailey, Jeff Goldblum and Ethan Slater, chat with ET's Denny Directo about Idina Menzel and Kristin Chenoweth,

The Wicked movie starring Cynthia Erivo and Ariana Grande finally hit theaters on November 22 and featured appearances from Chenoweth and Menzel in brand new roles. Fans began to suspect that Chenoweth would be making a cameo in the film back in August,

NOTE: Spoilers ahead for "Wicked." Turn back now if you wish to remain pure. Good news! "Wicked" is finally here — or at least, part one is — and fans can now see Ariana Grande and Cynthia Erivo's takes on Glinda and Elphaba in full.