Wow you guys, you should check this out :
http://www.youtube.com/watch?v=by8oyJztzwo&search=jerrycThis is a rock version of "Canon in D" originally by Johann Pachelbel. It was written in 1680 - its hard to imagine that something written literally hundreds of years ago kicks so much arse and the chord progressions are so relevant in todays music.
I remember learning this on piano when I was a kid.
I also found this link regarding Pachelbels canon
http://en.wikipedia.org/wiki/Pachelbel's_canon