Been playing a bit of his stuff of late. His grainy vocals never changed, and in fact got better with age. I often wondered how he didn't pop a blood vessel with the way he sang - he always gave it his all. RIP
I read a tribute yesterday, (forget who it was by) but one of the things he said was that Joe Cocker had an amazing ability to do a cover of a popular song, put his own stamp on it (i.e. completely change the way it was phrased/sang) and make it so much better than the original.
"With a Little Help From my Friends" above is a classic example.