Bobby Osborne and Sonny Osborne are also known as?
Sonny Osborne: Sonny Osborne (born October 29, 1937 in Hyden, Kentucky) is a bluegrass singer and five-string banjo player. Bobby Osborne: Bobby Osborne (born December 7, 1931) is a bluegrass musician known for his mandolin playing and high lead vocals.
i don't know