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 live for my children, so my number one rule is I won't go away from home for more than two weeks.
A voice is very intimate. It's something of your own. So there's always this fear, because you feel naked. There's a fear of not reaching up to expectations. As you become more famous, people come and expect to hear something extraordinary, so you don't want to disappoint them. I feel this sense of responsibility.
Apart from a period of crisis during my adolescence, when my voice was changing and I could not tame it - it was like a kicking foal that does not listen to reason - I have always been told I have a pleasant and recognizable voice.