[cynicalkane]

Among singers who have damaged themselves singing incorrectly are Freddie Mercury, one of the best rock singers who ever lived. Over time, he lost his range and stamina, and had to schedule tours in such a way that he had ample time to recover in between performances, otherwise he would lose his voice (this happened once).

I haven't heard him in a recent live performance, but reportedly Robert Plant has also ruined his voice. One person said that he "sounds like Winnie-the-Pooh".