Dan + Shay singer Shay Mooney and his fiancee, Hannah Billingsley, are expecting their first child!

The singer shared the joyous news to social media on Sunday (Oct. 7), writing, "Gonna have a new band member in the Mooney family," with a grinning icon.

"2017 is gonna be the start of our best adventure yet! Mini Mooney is comin in hot," he adds, finishing with, "I love you, @hannah.billingsley."

Mooney and Billingsley got engaged on Aug. 9, and announced their engagement in another social media post a few days later.

"I liked it…so I put a ring on it," the singer captioned a photo of himself and Billingsley. "I’m the luckiest man in the world. @hannah.billingsley I love you."

"Words aren’t enough. Truly the happiest day of my life. 8/9/16 I love you so much @shaymooney," she replied via Instagram.

Billingsley was Miss Arkansas USA in 2013. Along with Dan Smyers, Mooney is one-half of Dan + Shay, who shot to fame in 2013 with their debut single, "19 You + Me." Their debut album, Where It All Began, scored two more hit singles in "Show You Off" and "Nothin’ Like You," the latter of which reached No. 1 on Billboard‘s Country Airplay chart.

The duo released their sophomore album, Obsessed, in June of 2016, and the lead single from the project, "From the Ground Up," reached No. 1 on Billboard's Hot Country Songs chart. Their latest single from the project is "How Not To."

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