By Grace Gavilanes
Updated Feb 18, 2014 @ 10:55 am
Emily Blunt and John Krasinski welcome a baby girl!
Credit: Taylor Hill/FilmMagic

Congrats are in order for Emily Blunt and John Krasinski! The first-time parents welcomed a baby girl, Hazel, this Sunday. The Office alum took to Twitter to make the announcement: "Wanted to let the news out directly. Emily and I are so incredibly happy to welcome our daughter Hazel into the world today! Happy bday!"

Blunt, who was InStyle’s May cover star, opened up to us about her relationship with Krasinski, saying, "Meeting John really changed my life," she says. "When I feel the support that I have from him, I feel invincible." So sweet! Can't get enough? Click here to get up-to-date celebrity baby news.