There was an animated documentary series made by Mike Judge on Cinemax a couple years ago called "Tales from the Tour Bus" that covered a lot of wild stories about various outlaw country artists as well as James Brown, Rick James, P-Funk, etc. It was great; unfortunately the full episodes that used to be on youtube were taken down.
some of the episodes are available here
https://www0.solarmovie.to/movie/mik.../watching.html