Dierks Bentley is a dad for the first time after his wife Cassidy gave birth to a baby girl.Evalyn Day Bentley was born late on Saturday night at a hospital near the couple's home in Nashville, Tennessee. She weighed 3.5 kilograms (seven pounds and ten ounces).Bentley, 32, said of the new arrival, "She is the most beautiful little girl you have ever seen. Cass did great, and I'm so happy!"