One day after welcoming his first child, a daughter with wife Nancy Juvonen, the Late Night host talked about the new chapter in his life during his opening monologue. He also revealed her name.

Fallon said Juvonen gave birth to a “beautiful baby girl” named Winnie Rose. He sounded like most new fathers, excited with a touch of nervousness.

“Welcome, everybody, to Late Night With Jimmy Fallon, I'm your host Da-Da,” he said, Huffington Post reports. He added, "I'm the father of a beautiful baby girl. So cute. Her name is Winnie Rose Fallon."

The funnyman went on to joke, "I hope I don't screw this up."

E! Online reports despite saying he’s “emotionally drained,” Fallon took the opportunity to joke when he revealed her weight.

“She's 5 pounds, 9 ounces," he said. "I got down to the ounce—that's how I weigh myself as well. I've gotta lose a couple of ounces."

“It feels like it's been a four-day conference or something," he also joked. "It's very taxing on the fathers. I don't know how it is for the mothers, but very taxing.

Fallon, 38, and Juvonen, 46, met through mutual friend Drew Barrymore and got married in 2007.

image: NBC