The Met announced Wednesday that the singer, human rights lawyer and fashion mogul will join Vogue editor-in-chief Anna Wintour in co-chairing the event May 7. Wintour has served as a chair of the event nearly every year going back to 1995.
The Met Gala traditionally features celebrities dressed in sometimes outrageous costumes. Rihanna has drawn red carpet attention in years past, including last year, when she wore a dress covered in fluttery petal-like pieces by Japanese designer Rei Kawakubo.
Katy Perry and Pharrell Williams joined Wintour in chairing last year's gala.