It's a Girl! Celebrate the New Princess With Kate Middleton's Most Stylish Maternity Moments

Kate stepped out with her husband Prince William to enjoy the Royal Variety Show, where One Direction performed. The duchess met band member Harry Styles, who congratulated her: "I said congratulations on the bump. Though she didn't look bumpy," he said.

Kate chose DVF's Zarita Gown ($900), a demure design with intricate lace detail at the neckline, and she accessorized with her go-to glittering night clutch.