The duo who star in the hit musical based on the Broadway play sang from 'The Wizard Of Oz', 'The Wiz' and 'Wicked'.

At the Dolby Theatre in Hollywood on Sunday, the two Oscar-nominated stars treated audiences to a musical history of Oz onstage and onscreen. Grande first delivered a moonlit rendition of “Somewhere Over the Rainbow,” which Judy Garland famously sang as Dorothy in the movie “The Wizard of Oz.”