Rihanna shut down a rainy Met Gala on Monday in a pinstripe look and a huge hat, her newly announced baby bump on display after announcing her pregnancy with baby No. 3 earlier in the day.

Her Marc Jacobs look included tied sleeves of a men's suit that served as a bustle behind her as she posed for the cameras, the last to walk the carpet as usual. Her hair hung long in a mermaid twist behind her.