Los Angeles: Actor Zac Efron celebrated his 26th birthday in a low-key ceremony at the Chateau Marmont in West Hollywood here.
Although on his birthday Oct 18, he invited very few guests, including actor Robert Pattinson and singer Joe Jonas, Efron did thank his fans for their wishes on the microblogging website Twitter, reports contactmusic.com.
"My birthday wish was for all of you to have health and happiness. Love you guys and thanks to everyone...," he tweeted.
He also posted a video on his Instagram with the same caption.
Recently, the actor completed a stint in a rehabilitation centre for serious cocaine addiction and credited his family for keeping him grounded and helping him to stay sober.