This corny joke keeps floating around in my mind. My oldest sister told me it last summer.
It goes like this:

A: Do you know why Williw Nelson really died?

B: No, why?

A: He was playing 'On The Road Again'

Told you, ut's corny :p
For all who don't know, Willie Nelson came up with the song 'On The Road Again'.

(This is the song for all of you who've never heard it)
http://www.youtube.com/watch?v=1TD_pSeNeIU