Coy Bowles of Zac Brown Band and his wife Kylie have brought another baby into the country music world!

Kylie gave birth to Millie Mercy Bowles  — the couple's second child and second daughter — on Monday, Feb. 12, in Atlanta. Millie, whose name is inspired by Bowles' grandmother and great aunt, was born at 4:26AM, weighing in at 8 lbs. and measuring 19 3/4 inches long.

The newborn creates a family of four. She joins older sister Hattie, who is 15 months old.

"We are so excited about this lil’ lady Millie joining our family!" Bowles tells People. “Hattie will be an awesome older sister and nothing makes our hearts grow as a family [more than] to know that we’ll have another set of feet running around our home."

2017 was a busy baby year in country music, with Thomas Rhett's wife Lauren giving birth to a baby girl in August, while Brantley Gilbert (son), Tyler Hubbard of Florida Georgia Line (daughter), Jason Aldean (son), Dave Haywood of Lady Antebellum (daughter) all welcomed new babies in late 2017. In addition to Bowles' newborn, Hillary Scott of Lady Antebellum welcomed twins (Jan. 29) and Chris Stapleton's wife, Morgane, is also expecting twins in 2018.

Bowles, who plays guitar, slide guitar, Dobro, piano and organ in Zac Brown Band, is currently enjoying some downtime and will resume performing with the band in March for two shows, before taking on the lengthy summer tour that begins in June.

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