Madonna, Katy Perry, Nicki Minaj, Migos, Solange, Lana Del Rey, and SZA were the among the musicians attending tonight's Met Gala, the star-studded annual fundraising dinner for the Metropolitan Museum of Art's Costume Institute. The theme this year is "Heavenly Bodies: Fashion and the Catholic Imagination"; the accompanying museum exhibition explores the relationship between fashion and Catholicism with religiously inspired couture designs…