The couple shared the happy news Monday on Instagram and celebrated with friends and family at their gender reveal party.
The Aldeans, along with Jason’s daughters Kendyl, 9, and Keeley, 14, popped two balloons that contained blue colored confetti, which indicated that the parents-to-be are expecting a baby boy.
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“I know she would like to have at least one kid,” Aldean told PEOPLE in October of his wife. “And I’m down for that. I love kids and being a dad is one of the best things in the world for me. If it’s meant to happen, it will. Only time will tell.”
And what about his daughters — are they ready for a new little sibling?
“Keeley’s always been a mother hen type with babies, so we’d have a built-in babysitter!” he shared. “And Kendyl has always been the little sister, so for her to be the big sister, I think she’d be pretty stoked.”