Congratulations are in order for Josh Kelley and his wife, actress Katherine Heigl: The couple is expecting their third child!

"The Kelley clan is thrilled to announce that we are expecting a third addition to our family," Kelley and Heigl tell People, adding that they are "overflowing with joy and gratitude."

Baby No. 3 for Kelley and Heigl will be their first boy, and their first biological child. Naleigh Moon, 7, and Adelaide Marie Hope, 4, were both adopted -- Naleigh from South Korea in 2009 and Adelaide domestically in 2012 -- and, their parents say, both "could not be more excited to welcome their new sibling into the fold."

“This is an incredibly exciting time for us filled with hope, anticipation and hormones. Well, only I’m filled with hormones, but everyone in the family gets to enjoy them,” Heigl says jokingly. “We couldn’t be more excited to be able to finally share this news with our fans and are looking forward to continuing to share the journey with you all."

Kelley and Heigl's new bundle of joy is due in January. In addition to his sisters, he'll also have his cousin Ward -- the son of Lady Antebellum singer Charles Kelley and his wife Cassie -- to play with; Charles Kelley is Josh Kelley's younger brother.

Josh Kelley released New Lane Road, his first new album in five years, in April. The project features the song "It's Your Move," the music video for which Heigl directed and co-stars in.

2016's Country Music Babies