The model and author attended the event on Friday alongside her husband, John Legend, and their two oldest kids, Luna, 8, and Miles, 6.
Chrissy looked chic in a green long-sleeve sweater with matching micro shorts and strappy heels, while John went classic in a black suit with gold buttons.
Their kids were also dressed to impress, with Miles wearing a monogrammed green suit and Luna in a printed pink dress with a matching bag.