The Met Gala red carpet had plenty of surprises, from Rihanna's pregnancy to a standout moment from Diana Ross. See all the highlights from the night.

The superstar, embracing the night's celebration of dandyism, used the Met Gala steps as her official announcement of baby No. 3.

Fashionably late, the pop star seemed to confirm rumors she was pregnant when she met shouts of congratulations with: “Thank you!”