Howlin Wolf was one of the greatest, most original innovators in modern music; his influence and art have reached across social, cultural, and continental barriers to rank him among one of the greatest musicians of all time.
Led Zepplin is often considered a great band... but i'm not sure how many people would call them original, or innovators.
just to educate those of you who don't know, here's a case in point. Howlin Wolf's sublime song, Killing Floor
http://www.youtube.com/watch?v=qlUA_Q3s0So
and then, Led Zepplin's stolen Lemon Song:
http://www.youtube.com/watch?v=RGFO128AmQg
when they stole the song, they thought Howlin Wolf was dead. he wasn't. and he collected a very nice settlement from them. pretty obvious theft of intellectual property, huh?
remind you of anything?