Zac Efron is starting off 26 right. The "Neighbors" actor -- who successfully completed a rehab program five months ago -- celebrated his 26th birthday a Chateau Marmont in West Hollywood, Calif., on Friday, Oct. 18.
"Zac had a small birthday party at Chateau," an insider revealed to Us Weekly. "No girls at the table." But some of his famous pals that did make it out for the celebration included Robert Pattinson, Joe Jonas and Efron's "Awkward Moment" costar Michael B. Jordan.
Earlier in the day, the heartthrob golfed a few rounds with his father David at the Callaway Golf Center in Carlsbad, Calif. The single actor dressed casually for the outing, wearing jeans, a blue t-shirt and black shades.
In mid-September, multiple sources confirmed to Us that the former "High School Musical" star completed treatment for problems with cocaine and alcohol. "He realized he needed outside help," one friend explained to Us. "He reached out for it and is doing great now."