After their big days were over... Jimmy Carl Black was the drummer and sometimes vocalist on some early Frank Zappa/Mothers of Invention records ("Hi Boys and Girls, I'm Jimmy Carl Black, and I'm the Indian of the group."). He spent the last decade of his life in Germany, specifically, in the state of Bavaria, as the leader of the European Zappa tribute band, the Muffin Men.
Black was the focus of the 2013 German documentary movie "Where's the Beer and When Do We Get Paid?". Here is the trailer: