Ariana Grande, Cynthia Erivo deliver surprise duet at 'Wicked 2' event

Ariana Grande, Cynthia Erivo deliver surprise duet at 'Wicked 2' event Ariana Grande and Cynthia Erivo doubled the fun at Wicked: One Wonderful Night, the American television special celebrating the release of Wicked: For Good.On Thursday, November 6, the duo...