I haven’t done much, if any, exploring on you.tube, but I just found out that you can watch the documentary video The Keith Green Story there. Here’s a link to part 1; it’s in seven parts.
If you don’t know who Keith Green was, he was hippie flower child musician turned Christian who sang some powerful music back in the seventies. For the most part his career only lasted that one decade, but he was quite influential in the development of Christian music and in many people’s lives. Whether you’ve heard of Keith Green or you haven’t, I think you’ll find the video inspiring.