The excited first-time parents gave both of newborns "L" monikers, naming their son Lawson Brent Nail and daughter Lillian Catherine
David, 36, is best known for his hits "Let It Rain," "Red Light" and "Whatever She’s Got." He recently performed on ABC’s CMA Country Christmas special, which aired Dec. 3.
The country crooner and his wife, 31, who tied the knot in 2009, only announced the news that they were expecting during the 2015 CMA Awards on Nov. 4, when Catherine appeared on the red carpet with a large baby bump.
It’s been quite the baby boom already this month! Kim Kardashian and Kanye West welcomed their second child, Saint West, on Dec. 5. To see what the Keeping Up With the Kardashians family is saying about the adorable new addition, check out the video below.