Rihanna shut down a rainy Met Gala on Monday in a pinstripe look and a huge hat, her newly announced baby bump on display ...

Then, it was time to change into the after party look.

Singer Rihanna revealed her third pregnancy, Pharrell Williams sported a jacket with 15,000 pearls and musician Andre 3000 ...

See what the stars are wearing to this year's annual gala held at the Metropolitan Museum of Art in New York City.