It’s no secret that Ariana Grande was a massive fan of the Broadway musical Wicked long before she was cast in the Jon M. Chu film adaptation. Grande even spoke with Kristin Chenoweth, who originated the role of Glinda on Broadway,

Best Supporting Actress Oscar nominee Ariana Grande gets granular about the intense work that went into her performance as Galinda in 'Wicked'.

The late night host introduced the Grammy winner to the stage and declared, “Your test tonight, if you choose to accept it, is to sing a song you’ve never seen the lyrics or heard any of the music before.” Grande simply replied, “It’s too late. I can’t turn back.”