Coy Bowles and his wife Kylie now have a family of four! The Zac Brown Band member welcomed his second child, Millie Mercy, on Monday (Feb. 12).

Baby Millie was born at 4:26AM in Atlanta, Ga., People reports. She measured 19.75 inches long and weight 8 pounds at birth. She shares her name with Bowles' grandmother and great aunt.

“We are so excited about this lil’ lady Millie joining our family!” Bowles says. “Kylie and I are also so very pleased that we can continue and celebrate the tradition of our family name Millie."

Bowles and Kylie's first baby girl, Hattie, was born in October of 2016. The musician says she "will be an awesome older sister."

"Nothing makes our hearts grow as a family [more than] to know that we’ll have another set of feet running around our home," he adds.

In addition to his role in the Zac Brown Band, Bowles is the author of three children's booksAmy Giggles: Laugh Out LoudWill Powers: Where There’s a Will, There’s a Way and When You're Feeling Sick. The singer has a fourth book, Behind the Little Red Door, that is nearing publication.

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