I think I don't want to use drugs or medicine, so nothing. The only way is to go on stage and to hope.
I don't like being called 'macho.' Macho basically means stupid and a real Italian man is not macho, he's smart. That's smart in both senses: elegant and clever.
I don't have an extraordinary degree of self-confidence, but I know the gift I have been given from God and I try to share it with as many people as possible. Having a great voice is not a merit. I don't think it is a merit.
I have had the good fortune of being able to sing with many of the finest voices in the world, and for someone who loves voices as I do, this is an enormous privilege.