I got to see Chuck Berry in Tupelo at an Elvis Festival, Jerry Lee Lewis, Scotty Moore and D. J. Fontana, and got autographs except for Jerry Lee.  I saw Little Richard at one of them, too, and I was so nervous when I met him I thought I had given him a paper cut when I took my autographed poster.  I have a good story involving his brother, too, who was passing out books before his concert.