Prince George Alexander Louis wasn't the only newborn named Wednesday.

Following Prince William and Kate Middleton's happy announcement about the name of their son, late night host Jimmy Fallon revealed the name of his own newborn daughter during his nightly monologue.

The little girl, born July 23 to Fallon and wife Nancy Juvonen, is named Winnie Rose, and the new dad can hardly stop gushing—and joking—about the new addition to his family.

"Welcome, everybody, to 'Late Night With Jimmy Fallon.' I'm your host, Dada," he said, spurring laughter from the studio audience.

"I'm emotionally drained. I'm a father of a beautiful baby girl. She's so cute. Her name is Winnie Rose Fallon... She's 5 pounds, 9 ounces," he said. "I got down to the ounce—that's how I weigh myself as well," he teasingly continued. "I've gotta lose a couple of ounces."

Winnie is the first child for Fallon, 38 and Juvonen, 46, who married in 2007. They met through mutual friend, actress Drew Barrymore who co-starred with Fallon in the 2006 romantic comedy "Fever Pitch."

"It feels like it's been a four-day conference or something. It's very taxing on the fathers. I don't know how it is for the mothers, but very taxing," he said of being a first-time dad, also thanking fans and family members for all of their well wishes.

Fallon also talked about the timing of his daughter's birth, joking about Winnie's potential royal best friend.

"Yes, William and Kate we'll definitely set up a playdate-stop bothering me!" he quipped. "I saw the invitation on the easel, yes!"

Fallon is set to take over for Jay Leno as the host of "The Tonight Show" in 2014.