Zac Efron's Birthday Bash

Actor Zac Efron, who successfully completed a rehab program five months ago, celebrated his 26th birthday in West Hollywood, California., on Friday, Oct. 18. "Zac had a small birthday party at Chateau," an insider revealed to Us Weekly. "No girls at the table." Robert Pattinson, Joe Jonas and other stars were among the guests. Earlier in the day, the heartthrob golfed a few rounds with his father David. The single actor dressed casually for the outing, wearing jeans, a blue t-shirt and black shades.