I've watched this thread for a while and finally joined so I could post. Very cool that Phil was able to actually ask Mike WTF was going on in the vocals on this one...That performance launched his touring career. I emailed him via Youtube when it first came out asking what tricks he used but got no response...I knew for sure something was going on but I suspected it was going on live...It wasn't that it was so perfectly in tune. Lots of folks can sing in tune, but rather the doubling effect that made it thick and warm. I've never used Melodyne maybe it does more than just pitch correct because there is more going on in that vocal than just pitch correction. End result was a stellar performance the likes of which that can put one on the map for a career in performing live...