Congratulations are in order for new dad Patrick Stump and his wife Elisa Yao! Having made the two year marriage mark just a few weeks ago, the happy couple have one more thing to be excited about. Elisa just gave birth to their newborn baby boy, Declan, and we have the first photo of the adorable newborn above! Ellen DeGeneres was the first to tweet the photo, and Patrick's band, Fall Out Boy, followed suit shortly after. Aww!

Fans didn't know anything about Patrick's upcoming fatherhood until last year, when he finally announced his wife's pregnancy during a radio interview with KIIS FM.

The new addition to the Stump family marks the fourth Fall Ouy Boy baby. Guitarist Joe Trohman is the father to daughter, Ruby, also born earlier this year. The band's bassist-slash-lyricist-who-can-write-it-better-than-you-ever-felt-it Pete Wentz has two sons, Bronx Mowgli and Saint Lazslo, with ex-wife Ashlee Simpson and current girlfriend Meagan Camper, respectively. Considering Joe and Pete are known for bringing their families on the road with them, we're sure it won't be long before Declan is spotted sporting those huge headphones at his first Fall Out Boy show!

So... four kids, all with crazy talented rockstar dads... is it just us or are we hoping the Fall Out Boy kids band together in the future to create some kind of pop-punk super group? We'll give it a few years.

Check Out Surprising Celeb Yearbook Photos From Patrick Stump, Taylor Swift and More!