Question: What nationality is the performer of song One O'Clock Jump?
Sentence (from "Count Basie"): Many musicians came to prominence under his direction, including the tenor saxophonists Lester Young and Herschel Evans, the guitarist Freddie Green, trumpeters Buck Clayton and Harry "Sweets" Edison and singers Jimmy Rushing, Helen Humes, Thelma Carpenter, and Joe Williams.
Relevant evidence: No