Where did ORIGINAL/REAL Rock n' Roll originate from?

Keith I believe you're right about rock and roll beginnings were with the blues.

Eric Clapton did Robert Johnson's Crossroad Blues as a rock song when he was with Cream.

Here's the 2 of them.

[ame]http://youtu.be/Yd60nI4sa9A[/ame]

[ame]http://youtu.be/Y9FkEjOBJuw[/ame]