updated 02/03/2011 AT 1:00 PM ET
•originally published 02/03/2011 AT 1:40 PM ET
It’s a fourth baby girl for Zac Brown and his wife Shelly.
Daughter Joni Mason Brown was born at home on Wednesday morning, Feb. 2 outside of Atlanta, Ga., the country crooner, 32, announced via his Web site. She weighed in at 7 lbs., 14 oz.
Joni joins her three older sisters Justice, 4, Lucy, 2½, and Georgia Sloan, 16 months.