[Note: Usher and JT's voices had already changed by the time they were having hits. As for Michael Jackson—has it ever been scientifically proven that he actually went through puberty?
On being confident he could fill Madison Square Garden: “I just think that I have enough fans, so I could pull in the people. I don’t really get nervous anymore. I’ve already performed at Madison Square Garden, and I’ve performed for an hour before. What’s the difference?