Emily Blunt, John Krasinski Welcome Baby Girl

Star couple are first-time parents.

ByABC News
December 24, 2013, 3:28 PM
John Krasinski and Emily Blunt attend a gala at Tribeca Rooftop, June 3, 2013, in New York City.
John Krasinski and Emily Blunt attend a gala at Tribeca Rooftop, June 3, 2013, in New York City.
Taylor Hill/Getty Images

Feb. 16, 2014— -- Emily Blunt and John Krasinski are the proud parents of a baby girl, the happy father tweeted.

"Emily and I are so incredibly happy to welcome our daughter Hazel into the world today! Happy bday!" he tweeted.

This is the first child for the 30-year-old actress and the former "Office" star, 33. The couple first announced Blunt was pregnant in September.

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"It's hard to sum up something that's so vital and means everything to you in a sound bite. Do you know what I mean?" the "Devil Wears Prada" star told Modern Luxury Manhattan magazine in 2012 about her marriage to Krasinski. "All I can say is that it's an effing blast. It's just great, and I'm so happy."

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The couple, who were married in 2010, had always planned to have children, she said.

"We want to have children; I just don't know when yet," she said at the time. "I'm just not sure about the timing of all of that. We're both from big families so I think it's something we want."