To what famous singing group is this actor, James Best, related?

James Best was born as Jewel Franklin Guy on July 26, 1926, in Powderly, Kentucky, to Lark and Lena Guy. His mother was the sister of Ike Everly, the father of the pop duo The Everly Brothers. After his mother died of tuberculosis in 1929, then three-year-old James was sent to live in an orphanage. He was later adopted by Armen Best (1897-1984) and his wife Essa (1896-1988) and went to live with them in Corydon, Indiana.

He served honorably in the United States Army in World War II, training in 1944 in Biloxi, Mississippi as a gunner on a B-17 bomber, but by the time he finished training the war was almost at an end and he joined the Military Police. As an MP, Best played a role in bringing stability to war-torn Germany immediately after their surrender.

While stationed in Germany, Best transferred out of the MP and joined a special services unit of actors for the US Army that traveled around Europe performing plays for the troops. This was the true beginning of his acting career.