Zac Efron (in LNA) hides from photographers between cars as he arrives at a home in Los Angeles on Tuesday morning.

The 20-year-old High School Musical star showed off a bit of his boxers thanks to his low-slung shorts. Zac was sporting a pair of athletic shorts with “DEFENSE” emblazoned across the backside.

Zac’s costar Corbin Bleu recently shared about the Oct. 24 feature film release of High School Musical 3: Senior Year: “(Director) Kenny Ortega, when he has a bigger budget, he’s going to go for it,” Bleu says. “So we have really huge numbers and a lot of different dance genres including cha-cha-cha and breakdancing. We even have a Bob Fosse tribute. Zac and I have a really cool duet called ‘The Boys are Back.’” More Here! »

Zac Efron scopes out a new home in the Hollywood Hills on Monday afternoon. The 20-year-old High School Musical star wore a “New York Love” t-shirt with a “Hot Wheels” sticker on top of it.

Zac also carried around a few black-and-white photos with somebody’s autograph on them. Who is it??? Looks like a girl…

Last night, after the ALMA Awards, Zac took his HSM costar pal Ashley Tisdale for a late night snack at Bob’s Big Boy in Burbank, Calif.

UPDATE: Zac was at the former home of Michael Douglas and Catherine Zeta Jones. Interesting!

10+ pictures inside of Zac Efron showin’ some New York lovin’… More Here! »

Zac Efron and Ashley Tisdale pose together backstage at the 2008 ALMA Awards at the Pasadena Civic Auditorium on Friday in Pasadena, Calif.

Zac and Ashley were on-hand to present the special achivement award to Kenny Ortega for Outstanding Director of a Made for TV Movie. (Kenny Ortega recently direct Zac and Ashley in High School Musical 3.

Zac, 20, is looking to move forward after carving his initial niche in the acting world. “I want people to see that I have grown up and moved on. I know for sure — and I need a new start,” said Zac.

He added, “I’m looking for something new and exciting to do. I want to do something dark, or a comedy. There’s tons of icons that I would love to work with on something new and exciting!”

UPDATE: Pics of Zac and Ashley presenting at the ALMA’s have been added!

10+ images of Zac Efron at the 2008 ALMA Awards… More Here! »

Zac Efron channels his inner speed demon and drives 100+ MPH in an Audi R8 (retail price: $112,500.00) during the “Audi Driving Experience” at Infineon Raceway in Sonoma, Calif.

The 20-year-old High School Musical star, who currently drives an S6, said the driving experience was “a huge adrenaline rush. I’ve never been on a race track before — never once — and we were going pretty fast by the end of this.”

Zac also admitted, “This wasn’t the first time I was behind the wheel of an R8, I drive one in (upcoming film) Seventeen Again. I don’t want to give away too much but it’s kind of a fun scene in the movie, not really expected.”

Watch the video below of Zac Efron! There’s also another vid at People.com.

Below is E! Online’s exclusive look inside High School Musical 3: Senior Year!

“Graduation, prom, everybody wants to see the senior year, so it’s gonna be really cool,” says Ashley Tisdale, who reprises her role as super-snob, super-spoiled Sharpay Evans.

The clip below features a first listen at “Right Here Right Now”, a love song performed by Troy (Zac Efron) and Gabriella (Vanessa Hudgens).

Check out more screencaps of the vid at ZaaAngels.com. Watch the video below or at Eonline.com.

Zac Efron catches a departing flight out of Burbank Airport with younger brother Dylan and some friends in Los Angeles on Thursday morning. (Of course Zac’s pants ride so low, you can see his underpants!)

Check out the Access Hollywood video below of Zac passing flirty glances to girlfriend Vanessa Hudgens in a behind-the-scenes video of their September 2008 Elle magazine photo shoot. You see Zac being very playful and affectionate towards Vanessa, even swinging her around in his arms. Watch the clip below, a fashion nod to 1978’s Grease!

Muscle man Zac Efron shows off that hard work at the gym pays off after leaving the gym in Toluca Lake, Calif., on Tuesday afternoon.

The 20-year-old actor will be reprising his role as singing jock Troy Bolton in High School Musical 3: Senior Year, out Oct. 24.

Do you think Zac has ever watched the ABC reality contest, High School Musical: Get in the Picture? Methinks not!

“Considered Backpack” and new “Zoom TR” sneakers by Nike. Thanks, UNK! More Here! »

Zac Efron takes the time to to pose with a few female fans outside his apartment in Toluca Lake, Calif., on Tuesday morning.

The 20-year-old High School Musical star was at the Teen Choice Awards on Sunday with his on-and-off-screen girlfriend Vanessa Hudgens. You can come out and meet Vanessa on Sunday, August 17th from 1pm-4pm at Rockvale Outlets (35 S. Willowdale Drive, Lancaster, PA 17602). She’ll be signing her new CD Identified!

Last month, Zac help costar pal Ashley Tisdale celebrate her 23rd birthday at Malibu’s DKNY Jeans Beach House. After chomping down on a chocolate cupcake with pink frosting, Zac gushed, “She’s one of the nicest girls I’ve ever met. She’s sweeter than this cupcake.”

10+ pictures inside of female-fan-friendly Zac Efron… More Here! »