Conversation so far:
What did John Lee Hooker do later in his career?
John Lee Hooker appeared in the 1980 film The Blues Brothers. He performed Boom Boom in the role of a street musician.
How did John Lee Hooker die?
John Lee Hooker died in his sleep on June 21, 2001, in Los Altos, California in his home.

Question: What was his first career?
Self-contained rewrite: What was John Lee Hooker's first career?