Ariana Grande and Cynthia Erivo sang a rendition of Judy Garland and Barbra Streisand's "Get Happy/Happy Days Are Here Again" ...

In the end Cynthia Erivo went for it, and shocked audiences when soaring into the sky while singing "Defying Gravity" on One ...

Before she became a household name worldwide for her portrayal of Elphaba in the blockbuster Wicked movies, Erivo played ...

"Why do I love this place that's never loved me?" Elphaba sings on the track, which was written for the movie.