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Zac Efron is back in the spotlight, and he's grateful to be there.

"My family's my rock," the former "High School Musical" star said Tuesday, according to People magazine. "I know they're not going anywhere. More and more, I've come to rely on my little brother to keep me grounded. He's 21 now.

Efron, 25, reportedly completed a stint in rehab recently, though neither he nor his publicist ever officially confirmed the reports. Still, at the Oct. 15 press event, he alluded to hard times.

"I know my family's always going to be there," he said. "As my life changes, sometimes they can't really be there for you."

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Life is changing quickly for the star, who appears naked in a trailer for his new film, "That Awkward Moment."

Alongside co-stars Miles Teller and Michael B. Jordan, Efron dished on his on-screen nudity.

"There was, like, a sock thing," he said. "It fell off. You just cup your hands."

Hitting theatres this January, "That Awkward Moment" documents the lives of three single men living in New York City.

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"The movie was about girls and friends and relationships, and was showing kind of how our lives are," he said. "So, I think we knew a lot about it, and I think we had almost too much fun. … It was great."

As for his own love life, Efron, who is single, admitted he is on the prowl. So who is he looking for?

"I think someone that's creative and smart, self-confident," he said. "A nice smile, that's a good thing to have."