In the upcoming episode “Security Briefs”, The guys step up their security following a suspicious break-in. After Ari (Jeremy Piven) steals teen heartthrob Zac Efron from Adam Davies (Jordan Belfi), Davies counters by offering Lloyd (Rex Lee) a job as an agent. Meanwhile, Drama (Kevin Dillon) follows up on an insider tip on Vince’s (Adrian Grenier) suspected stalker and Ashley (Alexis Dziena) grows increasingly suspicious of Eric (Kevin Connelly).

The High School Musical star filmed scenes for the hit HBO show’s upcoming sixth season at the Beverly Hills Niketown store on Tuesday morning, HBO confirms to Usmagazine.com.

The cameo, first reported by E! News is Efron’s first on the show.

"He was filming a scene and talking on his cell phone," a Niketown employee told E!. "None of the other Entourage cast was here. He was really nice."

He and the film crew arrived around 9 a.m., before the store opened, to shoot his scene.

"He was wearing sunglasses, and he left in a limo with another guy," says the eyewitness.

The sixth season of Entourage — starring Adrian Grenier and Jeremy Piven — will also include cameos from musician Lil Wayne, Tom Brady and LeBron James. They will all appear as themselves.

The premiere is scheduled to air July 12.

"Chace Crawford will play the lead role of Ren McCormack in the film Footloose," Paramount told Us Tuesday.

The news is expected to be officially announced to trade publications Wednesday morning.

The actor has been considering the part for some time but had yet to officially sign until this week. He had been in contract negotiations and was struggling to make filming work around his Gossip Girl schedule, which is also due to start shooting its third season, a source told Us.

Crawford was offered the lead role of small town bad boy Ren — portrayed in the 1984 original by Kevin Bacon — after Zac Efron dropped out of the project in March.

The High School Musical star said the film "sort of" wasn’t a good fit.

"I want to grow a bit with the types of movies I want to make," he said in April. "It was more along the lines that I was looking for a new challenge, and this was another musical."

Footloose will be produced and directed by High School Musical alum Kenny Ortega.

Other stars who have auditioned recently for the movie, which is set to begin shooting in March 2010, include Hayden Panettiere, Amanda Bynes and Dancing With the Stars pro dancer Julianne Hough.

Behind Kobe Bryant’s 28 points, the Lakers hung on for a 116-114 victory. They still lost to the Celtics in last year’s NBA Finals, though.

In the photos below, Hudgens watches
the game intently, while Efron can’t stop thinking about his hair…

Where did this grounded, hunky actor get his start in showbiz? In the beginning of this decade, the 21-year-old began appearing on random TV shows, like ER, CSI: Miami, and The Replacements. Then, in 2004, he was cast in two films, the Lifetime original movie Miracle Run and the feature film The Derby Stallion.

Casting agents were blown away by Zac’s irresistible on-stage appeal, and the rest is history. Now that his obligations to HSM are wrapping up, next up is the highly anticipated movie 17 Again, in which he will be transformed back into his 17-year old self.

That’s not all! Zac recently filmed the movie Me and Orson Welles, based on the novel of the same title. The film, which will be released this coming year, follows a man cast as the lead in Orson Welles’ play Julius Caeser. Hand it to Zac to make Shakespeare sexy again!