Conversation so far:
WHAT IS AMERICAN RECORDINGS?
American Recordings is the 81st album by the country singer Johnny Cash.
WHAT KIND OF ARTIST WAS JOHNNY CASH?
His genre-spanning songs and sound embraced country music, rock and roll, rockabilly, blues, folk, and gospel.

Question: HOW WAS HIS CAREER REJUVENATED?
Self-contained rewrite: HOW WAS  Johnny Cash CAREER REJUVENATED in the 1990s?