Teen singer Aaron Carter [ tickets ] is having a busy day. Instead of sitting in an office talking to reporters about his first major headlining tour, the 13-year-old is walking down a New York street chatting on a cell phone. He's rushing off to his next appointment.

La vida loca is something with which Carter is familiar. He has seen his brother, Backstreet Boy Nick, juggle interviews, concerts, personal appearances and more. But Carter is no newcomer himself, having been involved in entertainment since he was 7. He already has a Nickelodeon "All That" tour and three albums under his belt, including the platinum-selling "Aaron's Party (Come Get It)" (Jive), which yielded the hits "I Want Candy," "That's How I Beat Shaq" and the title track.

Starting with this week's Rock in Rio festival, Carter is spending about a month on the road with a full back-up band, visiting mostly theaters. He's "amazed" by the success, and isn't quite sure why his music has touched so many people.

"Maybe it's my voice, my dancing," he opined. "I guess I have some kind of different personality. Maybe because I'm so young."

Age does have its limitations, however. He freely admitted that he doesn't have much say when it comes to recording.

"It all works in other people's decisions. I have my own say, too. I would love to have [more], but it doesn't matter. They're great. Everybody that works around me is really great. They all help me as much as they can."

He and his mother, Jane Carter, who penned the book "Aaron Carter: The Little Prince of Pop," jointly decided that he would cover "I Want Candy."

"The Bow Wow Wow, right? I love that group. One time, me and my mom were just listening to oldies, and we were like, 'That would be really cool if I did an "I Want Candy" cover.' So we decided to do it, and put it on the album, and it turned out good."

The subject matter on the 12-track "Aaron's Party" ranges from skipping out on homework to going to the movies to chatting online. It also includes the traditional New Orleans party song "Iko Iko." Carter said that recording "Aaron's Party" was a learning process. He explained that he did his best studio work when he channeled his live performances.

"The best advice I got was: when you're singing, to close your eyes and feel like you're in concert, because it gives it more of a live action," he said.

In March, he will be taking advice on a new entertainment medium: He's set to star in an as-yet-untitled film about a rich boy who takes it upon himself to help a man suffering from cancer. Originally called "Double Take," it was forced to change its title because a movie of the same name--starring Eddie Griffin and Orlando Jones--also was in production.

"It's about me having a dad that's really wealthy and really rich. What happens is, I get in a fight with my step-mom. There's this guy that I meet that has a disease, and I go back to my dad and pretend that I've been kidnapped. I try to get money to save this guy's life because he has cancer."

Carter said he is excited about taking his career to a new level.

"Hopefully, I'll be able to make it big in that, too."

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