Zac Brown and his wife Shelly are now the proud parents of a fourth daughter!

The couple welcomed Joni Mason Brown, weighing 7 pounds, 14 ounces, into the family the morning of February 2. She was born at the couple's Atlanta, Ga.-area home.

Joni Mason has three older sisters: Justice, 4, Lucy, 2, and Georgia, 1. And if Dad Zac has his druthers, baby No. 5 won't be far behind. "We're just gonna keep on going until we get a boy," Zac, who is one of 12 kids in his family, told The Boot. "If that's 13, then I doubt I'm gonna be able to pull that off, but we'll see."

Joni will have some company in the playpen when she hangs with her extended Zac Brown Band family. Fiddler Jimmy De Martini's new son Joseph Lance De Martini was born on December 2, 2010.

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