Shay Mooney, one half of superstar duo Dan + Shay, is going to be a dad for a second time! On Wednesday (Aug. 21), Mooney revealed that he and his wife, Hannah, are expecting a second baby boy. The couple are already parents to a son named Asher James, who was born in January of 2017.

Just two days before Mooney officially announced the big news, Dan + Shay hit another exciting milestone, officially notching their sixth No. 1 song at country radio with "All to Myself." In an Instagram post, the singer shared his excitement about both his professional and personal developments.

"Celebrating a number one with baby number two!" he wrote. "Hannah and I have been dying to share the news. We thought for sure we'd be announcing a baby girl, but God has other plans for the Mooneys. Found out today we're having a BOY!

"'Bout to be a new duo in town," he added.

In her own social media post, Hannah also noted that both she and her husband had initially been convinced that they would be welcoming a daughter. "We have cried and laughed all morning (I thought for sure it was a girl! 😂" she explained, alongside a series of photos of the couple's first child, Asher. "We are over the moon and can't wait to see this precious guy be the sweetest big brother ever, early next year!"

The mom-to-be also added a series of hashtags to her post, including "#WeAlreadyHadaGirlName" and "#BacktoTheDrawingBoard."

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