Question: Who is the American musician and singer who performed a version of the traditional English folk song "The Cuckoo" and began his performance career at Southern Appalachian medicine shows?
Sentence (from "Clarence Ashley"): He began performing at medicine shows in the Southern Appalachian region as early as 1911, and gained initial fame during the late 1920s as both a solo recording artist and as a member of various string bands.
Relevant evidence: Yes