After kicking off the weekend with a Grammy nomination, Lee Brice has something new to sing about: his baby boy! The country crooner, 33, and his wife Sara have welcomed their second son, he announced via Twitter Sunday. Ryker Mobley Brice arrived Wednesday, Dec. 4, weighing in at 8 lbs., 4 oz. and 20½ inches long, Brice tells Country Weekly. “Mobley was my great-granddaddy’s middle name, my daddy’s and mine,” he explains. Keep up with your favorite celebs in the pages of PEOPLE Magazine by subscribing now. “A week ago I didn’t think I could be any happier. I was wrong. Our brand new baby boy was born healthy. "