Country Joe and The Fish
Now here's a band everyone in the universe should probably listen to. It all started in 1965 when Country Joe McDonald would perform his original songs at anti-Vietnam war demonstrations. Then, the music he played consisted mainly of simple folk progressions and verbally dissident lyrics. Slowly he met up with other musicians and his project eventually involved into the band, Country Joe and The Fish. The band's peak was probably their appearance at Woodstock in 1969. Especially their legendary performances of "Rock and Soul Music" and the "I-Feel-Like-I'm-Fixin'-To-Die Rag".
In the words of Country Joe McDonald himself: "Now this ain't soul music, mind you. This is rock music, but it's got soul to it, if you can dig that." So if you can, "dig that", check them out. You won't be dissappointed.