The Met Gala returns to the Metropolitan Museum of Art on Monday, May 5, drawing a bevy of A-list celebrities to the storied museum for one of the biggest red-carpet moments of the year.

The Met Gala is the only place where Jared Leto can be a cat, and Rihanna can be the pope. Check out your favorite celebrities' wildest looks.

The Met Gala was founded in 1948 by Lambert, a renowned fashion publicist, as a means to fundraise for the Costume Institute and mark the opening of its annual exhibit. Lambert is also known for being the founder of the Council of Fashion Designers of America, which she established in 1962.