Zac Efron celebrates low-key birthday with R-Patz and Joe Jonas

Zac Efron celebrated his 26th birthday at the Chateau Marmont in West Hollywood, Calif. on Friday after successfully completing a rehab program five months ago.

The actor celebrated his day with Robert Pattinson, Joe Jonas and Michael B. Jordan after golfing with his dad earlier in the day, Us magazine reported.

An insider told the publication that Efron had a small birthday party with no girls at the table.