Fashion Rose Byrne Shows Off Her Baby Bump in a Chic Metallic Dress By Kelsey Glein Kelsey Glein Twitter Kelsey Glein is a Seattle-based writer and editor who covers all things fashion, beauty, and pop culture. She was previously the Digital Editor of InStyle and is currently a Social Media Manager at a cosmetics company. InStyle's editorial guidelines Updated on November 10, 2015 @ 12:45PM Pin Share Tweet Email Photo: PMC/Sipa USA It's only been a few weeks since the news broke that Rose Byrne was expecting her first child with boyfriend Bobby Cannavale, but the mother-to-be is already proving that she has great maternity style. The duo stepped out last night for the Bring Change 2 Mind gala in New York City, where the actress showed off her growing baby bump in a sleeveless metallic Blumarine jersey gown. Byrne accessorized her dress with a gunmetal Oroton clutch and an assortment of Jennifer Meyer jewelry, styled her hair in loose waves, and added black nail polish to finish off her edgy look. Talk about gorgeous! PHOTOS: See More Chic Celebrity Maternity Style But this isn't the first outfit that has showcased the star's pregnant tummy—she was previously spotted in a chic plaid shirtdressat the airport and later in a cozy gray ensemble while hanging out with friends.