Watch Ariana Grande Sing "The Wizard and I" From Wicked

Performances from NBC's A Very Wicked Halloween: Celebrating 15 Years on Broadway have been released for viewing.

Watch Ariana Grande sing "The Wizard and I":

See Kristin Chenoweth, Idina Menzel, and past and present Glindas and Elphabas perform "For Good":

A Very Wicked Halloween, which aired October 29 on NBC, reunited Tony Award winners Menzel and Chenoweth, the original Elphaba and Glinda, respectively, who performed and serve as hosts for the special. Additional guest performers included Grande, Adam Lambert, Ledisi, Pentatonix, and the current Broadway company of Wicked.

Based on the novel of the same name by Gregory Maguire, Wicked is set in the land of Oz and tells the story of young women Glinda and Elphaba, who grow up to become Glinda the Good Witch and the Wicked Witch of the West. Featuring music and lyrics by Stephen Schwartz and a book by Winnie Holzman, the production is directed by Joe Mantello, with musical staging by Wayne Cilento.