Question: American singer Steve Earle has released how many studio albums, including a collaboration with bluegrass artist Del McCoury, Delano Floyd McCoury was born in Bakersville, North Carolina in 1939, but the family relocated to York County, Pennsylvania while he was still a child, is an American bluegrass musician?
Sentence (from "Steve Earle discography"): American singer Steve Earle has released sixteen studio albums, including a collaboration with bluegrass artist Del McCoury.
Relevant evidence: Yes