We've finally arrived at Wicked: For Good release month, and fans don't even have to wait until November 21 to get their first sneak peek of Cynthia Erivo and Ariana Grande in action as Elphaba and Glinda, because a two-hour musical special, Wicked: One Wonderful Night , is heading to NBC . Featuring performances from Erivo and Grande, accompanied by a 37-piece live orchestra and their co-stars, Wicked: One Wonderful Night will prepare fans for Wicked: For Good and show off a sneak peek of what'