Justin Bieber Takes A Few Punches For Complex

'I feel like it's my responsibility to be the greatest I can be,' he says in the magazine's April/May issue.

Justin Bieber appears bloodied and beat up on the cover of Complex magazine, and it's a far cry from the Biebs' well-groomed image.

Inside the April/May issue, the 18-year-old opens up about his childhood and his very public relationship with girlfriend Selena Gomez. He also discusses his upcoming album, Believe, pledging that it's "go big or go home" once it drops later this year.

"I feel like it's my responsibility to be the greatest I can be," the magazine cover boy says. "If I start making terrible music, I don't expect people to like me. If I'm making great music and there's no reason for people to dislike me, that's when it's going to make me upset. People just need to take a chance and listen. If they don't want to take a chance, then I don't know. That's going to be the biggest problem: to make them feel like it's cool for them to like my music."

Bieber hopes the new album will show his growth. It will include a number of collaborators, including Mike Posner, who produced lead single "Boyfriend," set for release on March 26.

"I just rap for fun; it's nothing to take seriously," he admits. "On my new album, I'm going to do a little bit of rapping," he adds before giving a preview of a few lines from "Boyfriend." "Tell me what you like, dear/ Tell me what you don't/ I could be your Buzz Lightyear/ Fly across the globe/ You don't even need to fight, dear/ You already know/ I can make you shine bright/ Like you're laying in the snow, burr," he raps.

The superstar also goes into detail about his work ethic, saying that he sets the bar high for himself. "When I release something, I want it to be the best," he says. "When I release my fragrance, I want it to be the #1 fragrance — I don't want it to be the ninth-best-selling fragrance. My Christmas album went double-platinum worldwide. Christmas albums don't do that, and that still wasn't good enough for me."

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