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Happy Birthday! — Zac Efron's Sexiest Shirtless Photos Revealed In 9 Clicks
![Zac efron shirtless](https://media.okmagazine.com/brand-img/iUue4kzO1/480x251/2017/10/herozacc.jpg 480w, https://media.okmagazine.com/brand-img/iUue4kzO1/640x335/2017/10/herozacc.jpg 640w, https://media.okmagazine.com/brand-img/iUue4kzO1/768x402/2017/10/herozacc.jpg 768w, https://media.okmagazine.com/brand-img/iUue4kzO1/1024x536/2017/10/herozacc.jpg 1024w, https://media.okmagazine.com/brand-img/iUue4kzO1/1280x670/2017/10/herozacc.jpg 1280w, https://media.okmagazine.com/brand-img/iUue4kzO1/1440x753/2017/10/herozacc.jpg 1440w, https://media.okmagazine.com/brand-img/iUue4kzO1/1600x837/2017/10/herozacc.jpg 1600w, https://media.okmagazine.com/brand-img/iUue4kzO1/2160x1130/2017/10/herozacc.jpg 2160w)
Sept. 3 2019, Updated 5:44 a.m. ET
There’s never a reason not to enjoy a shirtless picture of one of Hollywood’s hottest hunks, Zac Efron. And what better reason to do so than in honor of the actor turning thirty-years-old?! Of course, one photo of his abs are never enough, so click through for a look at 9 of Zac’s sexiest shirtless looks in recent years. You’re welcome.
![Zac efron shirtless](https://media.okmagazine.com/brand-img/wOx0vLFwT/0x0/2017/10/AG_029485_002.jpg)
Zac’s had abs forever! Back in 2014, he dazzled fans at the MTV Movie Awards, after Rita Ora snapped off his shirt when presenting him with the award for Best Shirtless. That prize was much deserved.
![Zac efron shirtless](https://media.okmagazine.com/brand-img/9IWSlSL6h/0x0/2017/10/AG_103648_003.jpg)
The following year, Zac showed off his chest on the set of Dirty Grandpa.
![Zac efron shirtless](https://media.okmagazine.com/brand-img/M1pe-xk0c/0x0/2017/10/AG_069311_001.jpg)
Sorry Robert DeNiro, Zac’s giving you a run for your money!
![Zac efron shirtless](https://media.okmagazine.com/brand-img/Vz5E5MA-2/0x0/2017/10/AG_069441_001.jpg)
How is he such a stud?! Zac basically never needs to put a jacket on, and the world will be totally fine with that.
![Zac efron shirtless](https://media.okmagazine.com/brand-img/Kcvldfhdr/0x0/2017/10/AG_103859_001.jpg)
And Zac doesn't just look phenomenal, he also does his own stunts. Is there anything he can't do?
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![Zac efron shirtless](https://media.okmagazine.com/brand-img/MrVJIEuWi/0x0/2017/10/AG_103921_002.jpg)
Now let's get to Baywatch! He shocked the entire world with this transformation. Of course, Zac was obviously already in amazing shape over the years but this is just a totally different level.
![Zac efron shirtless](https://media.okmagazine.com/brand-img/AClYvU-Kz/0x0/2017/10/BGUS_894936_028.jpg)
Forget a six-pack. Zac literally was rocking an eight-pack. Guess you have to go extra hard or go home when co-starring with The Rock!
![Zac efron shirtless](https://media.okmagazine.com/brand-img/XB_0Y-i2d/0x0/2017/10/BGUS_894936_002.jpg)
According to Zac’s trainer, Patrick Murphy, the actor reached 5% body fat after just 12 weeks of training.
![Zac efron shirtless](https://media.okmagazine.com/brand-img/UsOGggPi7/0x0/2017/10/BGUS_894936_008.jpg)
And he didn't just look like a lifeguard, he had the strength and agility of one too!
![Zac efron shirtless](https://media.okmagazine.com/brand-img/Y09XWPACk/0x0/2017/10/BGUS_894936_001.jpg)
Now that we've stopped drooling, we wish Zac a happy 30th birthday!