Rose Byrne has welcomed her first child with partner Bobby Cannavale.
The Australian actress gave birth to a boy, Rocco, on February 1, the proud father revealed on CBS' The Late Show with Stephen Colbert.
"You know, I didn't do anything ... and I'm so tired," the Vinyl star, 45, told Colbert.
"I think I've gained 28 pounds [12.7 kg] since Monday."
The 36-year-old Byrne debuted her growing baby bump at LAX airport back in October, but the notoriously private couple have revealed few details of the pregnancy.
