There really is no possible objective way to measure the greatest rock n' roll song of all time, but pretty high on any list would be whether a song was so essential that just about everybody who's ever picked up a guitar had to try their hand at it. I say you can't go wrong with the original, primordial, classic rock standard that's one of the very few songs of the 1950s that sounds as fresh today as it did five decades ago (warning, the volume of these is variable):