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

On Sunday night, Cynthia Erivo officially lost her last chance to become the youngest person to EGOT (that's winning a competitive Emmy, Grammy, Oscar, and Tony) at the age of 38. Erivo, who opened the ceremony with a showstopping medley alongside costar Ariana Grande,

Until they came back together to sing the Wicked‘s part one closer, "Defying Gravity." While Ariana watched in amazement, seeing Erivo soar, nailing those final notes, as did the audience. The performance earned a standing ovation.