Ariana Grande, Cynthia Erivo and the cast of Wicked Oscar red carpet looks feature glitz, glam

"There's no place like home." The Oscars start with Judy Garland and her ruby shoes from "The Wizard of Oz" and roll out a montage of movie scenes from "La La Land," "Once Upon a Time in Hollywood" and other films to honor LA. Ariana Grande first comes out to sing a stirring rendition of "Over the Rainbow," and then her "Wicked" co-star Cynthia Erivo arrives to belt "Home" from "The Wiz" to stick with the theme. Of course, they then meet each other on center stage and hold hands to do "Defying Gravity."