Coy Bowles
Instagram/@coybowles

Zac Brown Band's Coy Bowles and Wife Kylie Welcome New Daughter

Yesterday on Instagram, Coy Bowles of the Zac Brown Band posted a sweet photo of himself and his wife, Kylie, with the newest addition to their family - a baby girl named Millie Mercy Bowles.

Alongside a photo of the family looking elated (and stylish with mom and baby wearing matching patterns), Bowles wrote, "The Bowles family would like to introduce to you the amazing Millie Mercy Bowles. Born 2-12-18 weighing in at 8lbs even. Guaranteed to rock the world. Momma and baby are wonderful."

According to People, Millie was welcomed into the world around 4:30 in the morning, making the Bowles' first daughter, Hattie (born Oct. 2016), an older sister. Keeping up with a family tradition, Millie's name has been passed down from Bowles' grandmother and great aunt.

Millie will surely become a fan of Bowles's other creative project - a series of children's books. So far, he's released Amy Giggles: Laugh Out Loud, a story about a girl with a big personality learning to accept herself, Will Powers: Where There's a Will There's a Way, a tale about a boy forming a good work ethic, and When You're Feeling Sick, a book that takes on a sick day with a sense of humor.

Soon, Bowles will release his forth book, Behind the Little Red Door.

Now Watch: Inside Johnny Cash's Forgotten Lakeside Estate