It cracks, like every teenage boy. Even some of the notes I hit on Baby I can't hit anymore. We have to lower the key when I sing it live.

I'm dealing with it. I have the best voice coach in the country, Miss Jan Smith.'One of his problems singing live is the screaming fan girls: 'The other day, I was playing in front of 75,000 people. My friends were there, and I asked them, 'Did I do good?' They were like, 'I have no idea, all we heard was screaming.''