Credit: Alli Harvey/Getty Images

Yee-haw!

Country singer Jo Dee Messina is a mom once again. On Wednesday, the "Unmistakable" singer, 41, gave birth to son Jonah Christopher Deffenbaugh, her second child with husband Chris Deffenbaugh, in Nashville.

Messina and husband Chris Deffenbaugh are already parents to son Noah, 3.

"Noah couldn’t wait to hold his little brother," Messina said in a statement. "He"s so good with him. God has blessed us so much."

Messina (who recently made a cameo on Real Housewives of Atlanta) announced her second pregnancy back in October.