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‘Neighbors’ actress, Rose Byrne and long time beau Bobby Cannavale announced on ‘The Late Show with Stephen Colbert’ that, he and Byrne have entered the life of parenthood. Take that with a grain of salt.

Byrne gave birthday to baby Rocco this past Monday!

Cannavale stated, “I had a baby on Monday, yes.” So cavalier Bobby! He decided to joke that he had added a few extra pounds through the transition into the parenthood journey, “You know, I didn’t do anything. We [men] don’t do anything and I’m so tired. I think I’ve gained 28 pounds since Monday. I mean, I’m not kidding you. Like, this jacket fit so well, like, last Thursday. But I’ve been eating so much.”

The two were trying to keep Byrne’s pregnancy low key, but finally opened up with Byrne revealing a baby bump, back in November at the Bring Change 2 Mind 2015 Gala in New York City.

Aww. Congratulations Rose Byrne and Bobby Cannavale!