I like the quiet of those moments during the preparation of the look, when you're with your team putting the final pieces together and you all see the look at its most fully realized. For her megawatt Oscars moment, DeBose knew she could wow in Valentino's Haute Couture palazzo pant, bra top, and dramatic cape-all special-designed for her by Pierpaolo Piccioli. The evening, co-hosted by Firth,...