Some may laugh at this one, but oh well! A few years ago, I think it was the Grammy Awards, Lucianno Pavorotti was to perform but became ill at the last minute. Aretha Franklin volunteered to sing the same piece of music and did so. I've never been more moved by a vocal performance before or since. It may have been a combination of the circumstances plus Ms. Franklin's unbelievable voice. I have no explanation. It was truly moving as well as achingly-beautiful.