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.

But what about the stars of the original Broadway musical, Idina Menzel and Kristin Chenoweth, who originated the roles of Elphaba and Glinda, and can fans of the original musical expect to see the famous original performers in the theatrical motion picture?

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