Cynthia Erivo and Ariana Grande showcased their extraordinary voices at the Oscars with a medley that included “Somewhere Over the Rainbow” from “The Wizard of Oz” and “Defying Gravity” from “Wicked.” ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: https://abcnews.go.com/devices Watch 24/