The first Monday in May brings together a host of A-listers, designers, and models dressed head-to-toe in glamorous getups for the annual Costume Institute fundraiser, which was co-chaired by Anna Wintour, Rihanna, Amal Clooney, and Donatella Versace, this year. The theme, Heavenly Bodies: Fashion and the Catholic Imagination, invited attendees to wear their “Sunday Best” which resulted in striking headpieces, lots of crystals, and Katy Perry’s larger-than-life, gilded Versace wings. In the gallery ahead, the best dressed celebrities from fashion’s biggest night.