Justin Bieber Talks 'Never Say Never'

'It's been so much fun to be able to live my dream,' singer says on 'Today' show.

Justin Bieber is on press rounds promoting his 3-D movie "Never Say Never," out next weekend. He appeared on the "Today" show, where he sat down with Matt Lauer to talk about the film and how it chronicles his rise to fame.

"Not just that I've been working hard, just showing what I've been going through and how much it takes out of you. It's been so much fun to be able to live my dream," he said, with a crowd of screaming fans watching.

The film is part concert film, part documentary, and his fans play a big role in it. Bieber said that the part in the film where he gives away tickets to his fans is his favorite. "I love that part. It's one of my favorite parts because everyone gets happy. It makes everyone happier. You go in the back and you give them tickets ... it's amazing."

Bieber explained that while his rise to fame was no accident, he had no idea it would be this meteoric or epic. "It was crazy because I started out posting videos online and not wishing for anything and then this all happened really fast," he said. "I've been playing music since I can remember. It's such a big part of my life and I want that to be shown, especially in my movie."

Sure, Bieber is busy being a pop star, but he says that he makes sure that in addition to working hard, he gets some time to play hard. "Well, I make sure I have at least one day off a week. I need one day of downtime. The rest of the week is all jam-packed. I have to have at least one day," he said. "It's hard because I'm away from my family, like, my brother and sister. You only live once, but at the same time, by brother and sister are going to grow up and they're going to be proud of me."

These days Bieber's other big challenge is puberty. "My voice is definitely changing, gradually," he said. "It's how you go through it. I have a good vocal coach."