While Zendaya's ensemble came courtesy of Louis Vuitton and Dior designed Sawai's, the parallels were impossible to ignore. Wide-brim hats, sleek white suiting, and that signature swagger, it was giving twinsies with a twist.

Ms. Sawai worked with the stylist Karla Welch on the suit designed by Maria Grazia Chiuri, which she paired with a Cartier watch. In the past year, both Cartier and Dior announced that Ms. Sawai would be an ambassador for the brands.