CNN  — 

Tonight, New York’s Metropolitan Museum of Art rolled out the red carpet for the Met Gala, the annual opening party for its spring exhibition. The invite-only event is also a fundraiser for the museum’s Costume Institute.

Celebrities – including co-chairs Rihanna, Amal Clooney, Donatella Versace and Anna Wintour – dressed to the theme of the show, “Heavenly Bodies: Fashion and the Catholic Imagination.”

Singers Katy Perry and Rihanna wore some of the night’s most memorable ensembles. Perry donned six-foot angel wings to pair with a metallic gold Versace mini dress and Rihanna seemed to channel the pope, wearing a pearl and jewel-encrusted mitre and robe designed by Margiela.

Emmy award-winning writer Lena Waithe stood out in a rainbow-flag cape designed by Carolina Herrera, among the celestial gold and silver dresses. The bold look was praised on Twitter.

This year’s show will put the focus on fashion and works of medieval art, in what the Met describes as a thematic exhibition examining “fashion’s ongoing engagement with the devotional practices and traditions of Catholicism.”

Papal robes and accessories on loan from the Vatican will be appear alongside designers Dolce & Gabanna, Versace, Chanel, Balenciaga and Valentino. The exhibition opens to the public on May 10 and runs through October 8, 2018. Follow our live blog here.