Jimmy Fallon and wife welcome daughter Winnie Rose

Jimmy Fallon/Instagram

Jimmy Fallon, 38, and wife Nancy Juvonen, 46, are “overjoyed about the arrival of their beautiful daughter,” Fallon’s rep confirms to People.

“My wife and I thank you for all of the nice baby well wishes. Her first day was the best day of our lives. So happy. Thanks again,” Fallon wrote on his Twitter page.

The couple has been married since December 2007.

Congratulations to the new parents!