The Zac Efron the 21-year-old star of 17 Again opens up in a revealing new interview for the May 2009 Issue of GQ Magazine.  Here is some of the interview:

Zac on his parents: "They completely believed that there was a one-in-a-billion chance I would ever be successful. And that was ingrained in the back of my head: I will fail. I'm going to fail. They managed my expectations. I was always prepared to fail. So it was kind of confusing when things started to work out." 

Zac on talking with his idol, Leonardo DiCaprio: "I thought I was gonna ask him questions. He ended up asking me questions, and in that, he told me a lot. He said, 'There's one way that you can really mess this all up. Just do heroin. If you steer clear of that, the other obstacles you'll be able to navigate.' And that makes sense, dude."

Zac on his future: "I'm truly ready right now. I can't wait, dude. I'm going to do something-something cool. Something people aren't necessarily expecting."

Pick up the May 2009 Issue of GQ this month and let us know what you think!