Katy Perry performed "Roar" and "Firework" at the first-ever coronation concert in honor of King Charles and Queen Camilla, and she did so in a bespoke Vivienne Westwood look ...

The detail in question happens to be the metallic gold Yves Saint Laurent cutout gown Miley donned from the fashion house’s fall 1991 collection, as it slightly resembles the Prabal Gurung ...