Credit: Rick Diamond/WireImage

Rascal Flatts member Jay DeMarcus has something new to sing about: a baby girl!

The country superstar's wife, Allison, gave birth to daughter Madeline Leigh at 4:49 p.m. in Nashville Friday. Weighing in at 6 lb., 9 oz., Madeline is the first child for the couple, who wed in May 2004.

"Allison and I are thrilled" Jay, 39, tells in a statement. "Madeline is absolutely gorgeous -- she looks just like her daddy! Both mom and baby are doing well."