This is one of my all time favourite live guitar moments, he was seriously on the stuff at the time, he played it again when he was straight and it sounds nowhere near as good though.
For me the man had more soul and emotion in his little finger than all these wank shredders have in a lifetime
Love how he messes with the amp while playing
http://www.youtube.com/watch?v=kxgrnmf0V2g
I think Joe Bonamassa, Jack white and Dan Auerbach are the best out of the current crop.