Jason Aldean shares first photo of newborn son

Dec. 2 (UPI) -- Country music star Jason Aldean has welcomed his first child with his wife Brittany Kerr.

"So blessed today to see my little man come into the world. In a year that has been a rollercoaster ride, this is what its all about. I cant wait to see what life has in store for this kid. Memphis Aldean... 9lb 5 oz. #mamawasarockstar," he tweeted early Saturday, along with a photo of him looking down on Kerr as she cradles their newborn in a hospital bed.

Aldean and Kerr have been married since 2015. He also has two daughters from his previous marriage to Jessica Ann Ussery.

The 40-year-old recording artist was one of the headliners at the Las Vegas music festival where 58 people were killed and hundreds injured by a gunman Oct. 1. A few days later, Aldean opened that weekend's episode of Saturday Night Live with a rendition of Tom Petty's "Won't Back Down."