Jason Aldean and his wife Brittany have welcomed their first child, a son named Memphis. Brittany reveals in a post on Instagram that Memphis was born on Friday (Dec. 1) at 1:29PM.

He weighed 9 lbs., 5 oz. at birth and has pouty lips and dad's love, the photo the couple shared indicates. "Hands down the happiest day of my life," Brittany says, thanking Aldean for the support "and enduring all the hand squeezing and nail digging."

Aldean adds that the delivery went well and that "mama was a rockstar."

"So blessed today to see my little man come into the world. In a year that has been a rollercoaster ride, this is what it's all about," the superstar singer writes on Twitter. "I cant wait to see what life has in store for this kid."

Memphis was due around Dec. 7.

Aldean married the former Brittany Kerr on March 21, 2015 on the beach in Cancun, Mexico. The couple revealed they were expecting their first child together in May of 2017, and announced the baby was a boy via social media a few weeks later. They revealed that they had chosen the name of Memphis for their son when they posted shots of his nursery in September.

Aldean has two daughters from his first marriage, but he admits he is really looking forward to doing guy things with his son. "Hunt, fish, playing baseball in the yard and all that kind of stuff, I’m looking forward to all of it," he tells Taste of Country.

This is Brittany's first child. "There are truly no words for the love we feel," she adds of her newborn son's arrival.

Proof Jason Aldean's Baby Is Cooler Than us

The Coolest Baby Names in Country Music