Zac Efron turned 34 on Monday (October 18). And on this very special occasion, the Baywatch star shared a shirtless picture of himself on Instagram. In the click, the actor could be seen enjoying some beach time in Thailand with his pooch. Along with the thirsty photo, he also added a fun caption and jokingly mentioned that he's getting old.

Zac Efron Shirtless:

 

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A post shared by Zac Efron (@zacefron)

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