NASHVILLE, Tenn. — James Otto is singing a happy tune.

The country star and his wife, Amy Otto, welcomed a baby girl Tuesday night in Nashville, Tenn.

The couple's daughter, Ava Katherine Otto, was born at 9:23 p.m. She weighed in at 8 pounds, 2 ounces and measured 19½ inches long.

"We can't believe Ava is finally here!" the 37-year-old singer said. "She is beautiful like her Mama and I am already wrapped around her tiny finger."

He added, "I am so grateful I made it home in time to be here for her arrival — it has truly already changed our lives."

This is the first child for the couple, who married in October 2005.

Otto's new album, Shake What God Gave Ya, drops Sept. 14.