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Rose Byrne Welcomes Baby Boy!

Rose Byrne has welcomed her first baby with partner Bobby Cannavale…and he revealed the news on ‘’The Late Show with Stephen Colbert’’.

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“I had a baby boy on Monday!” the actor told the host.

“I didn’t do anything…and I’m so tired. I think I’ve gained 28 pounds sine Monday…I’m not kidding you,” he also shared.

The Boardwalk Empire star also revealed they had named their newborn Rocco.

"Actually, yeah, patron saint of the sick...pretty sure. Could be wrong. I'm tired," the new father said of their inspiration for the name.

Cannavale and the Aussie actress have been dating since 2012.