Meanwhile, fans have been in a frenzy over rumors that Grande was paid $15 million to star as Glinda the Good Witch in the two-part movie musical, while Erivo, 37, only got $1 million to play Elphaba, the Wicked Witch of the West.

In a new Los Angeles Times oral history, Wicked composer and lyricist Stephen Schwartz explains:

It's truly impossible to pick a favorite scene from Wicked, but—aside from every time Jonathan Bailey furrows his brow—Ariana Grande's rendition of "Popular" has to be up there. And apparently it was almost completely different. Wicked composer Stephen Schwartz says he pitched Ariana Grande a new version of "Popular," and she fully shut it down.

Ariana Grande, who stars as Glinda in Jon M. Chu’s “Wicked,” reportedly didn’t want to perform a new version of “Popular” in the musical film. Stephen Schwartz — the composer and lyricist of the original Broadway musical as well as the movie of the same name — recently told the Los Angeles Times that he and his music team considered refreshing the “rhythm” of the number in the spirit of “being open to new things” for the film.

Can't get "Popular" from 'Wicked' out of your head? Ariana Grande just revealed the origin of her viral "RIGHT" line from the song, which features slight changes from the original Broadway tune.

Cynthia Erivo opens up about her bond with co-star Ariana Grande while filming "Wicked," sharing how their early friendship and promise to support each other shaped their on-screen chemistry as Elphaba and Glinda.

"Anytime i feel like they’re making me do something silly in an audition im going to remember they made cynthia erivo sing defying gravity with an actual broom in her hand."

Ariana Grande and Cynthia Erivo's version of "Defying Gravity" from Wicked finally becomes a smash, as it debuts at No. 7 on the U.K. singles chart.