I listened to his first and last songs and too me his voice sounds almost the same (taking in consideration the age difference). I think it's partially our self

I listened to his first and last songs and too me his voice sounds almost the same (taking in consideration the age difference). I think it's partially our self confidence that influences our talents. After 15 year he says, "Yeah, I practiced so much, for SURE I'm much better!" and from now on he is the best. He radiates confidence because he now knows he is good and people around him feel it as well and think he is great. The moment your brain is free from self-limitation you just fly , sadly for most humans it happens after so many years .... C'est la vie...