what is the best rock n roll song of all time?

http://www.youtube.com/watch?v=SkGzjIq4aZI]

http://www.youtube.com/watch?v=La9Me7alNqA

http://www.youtube.com/watch?v=XC-FrJ8W0Yc

http://www.youtube.com/watch?v=UBmUX74aME0