The physical stresses have taken toll on his voice and self confidence? It must give a person a lot of self doubt, no matter how much success has happened before, to hear that you can't sing the songs you could before or this is the end because your voice cracks when you have to sing a bit bolder. It's easy for people to criticise and not know what effect this can have on a person psychologically speaking.

As a singer myself, I know what it's like to overcome such criticism and how confidence (or lack of it) affects vocal performance. Stress has no place when singing and it was refreshing to hear that he has had issues with it and is still trying to get back on top of it. Respect to that man - and a great interview!