Paul Dano & Zoe Kazan Welcome Baby Girl!

Paul Dano and Zoe Kazan are now parents!

The 34-year-old actor confirmed the news during his appearance on The Tonight Show Starring Jimmy Fallon on Wednesday (October 24).

PHOTOS: Check out the latest pics of Paul Dano

The two, who have been together for 11 years, welcomed their baby girl eight weeks ago. They also never publicly announced that Zoe was pregnant.

“I’m so tired and I’m so in love,” he said to Jimmy.

“It’s so extreme. Your heart has gone like supernova in one sense. We landed from London last week and she cried for like 24 straight hours and you just kind of want to walk through a wall. It’s crazy.”

Watch below!