On Monday (May 7), the celebrity and fashion elite converged at the Metropolitan Museum of Art in New York City to celebrate the avant-garde world of couture.

"Heavenly Bodies," the controversial theme of 2018's Fashion & The Catholic Imagination Costume Institute Gala, didn't disappoint, bringing out some of the industry's most experimental—and downright bizarre—sartorial statements, from Katy Perry's literally angelic red carpet moment to Rihanna's off-kilter riff on the pope's mitre.

See all the weirdest fashion looks from the 2018 Met Gala, hosted by co-chairs Amal Clooney, Rihanna and Donatella Versace, below.