O.K., folks this is required reading. It's filmmaker Michael Ventura's classic essay "Hear That Long Snake Moan," in which the author argues that blues, jazz, rock 'n' roll, TV evangelism, and a lot of our pop culture springs from the religion of voodoo.
The web host indicates the essay will be on his site only temporarily, so read it right away.
By the way, "Long Snake" appears in Ventura's compilation Shadow Dancing in the U.S.A. . Amazon.com says it's out of print, but there are used copies available for real cheap.