Zac Efron celebrates low-key birthday with celebrity friends

Zac Efron celebrated his 26th birthday on Friday (18Oct13) with a celebrity boys night out.

Weeks after reports surfaced suggesting the actor had completed a stint in rehab earlier this year (13), the Hairspray heartthrob was spotted celebrating in Los Angeles.

Efron enjoyed a low-key bash at Hollywood hotspot Chateau Marmont, and was joined by friends Robert Pattinson, Joe Jonas and Michael B. Jordan, his co-star in the upcoming film That Awkward Moment.

Prior to the party, Efron was spotted playing golf with his father in Carlsbad, California.

The actor took to Twitter.com to thank his fans for their birthday wishes and support, and wrote, "My birthday wish was for all of you to have health and happiness. Love you guys and thanks to everyone for all the birthday messages and videos! I've never felt more loved."