The other interesting thing to note are the sections where he sings in a much lighter, gentler style that seems almost reminiscent of his singing in the 70s, e.g., "Never fade away" at 0:57, "Play again, play again" at 1:12.
Glad to see I wasn't completely off in spotting something unusual in the vocals, as I said though, I need to listen to it a couple of times more to elaborate.