Conversation so far:
Who did the first riff off?
Smiley Lewis's.
What song was this?
Play Girl.
Who wasthis credited too?
credited to D.
Bartholomew.
What label is that on?
Imperial Records label.
Who else made a riff?
Jesse "Big 'Tiny'" Kennedy.
What are they known for?
female impersonator.
What was it called?
Country Boy.

Question: What label?
Self-contained rewrite: What label was country boy on?