
via People
Wow, when did Zac Efron get so old? It feels like just yesterday he was singing alongside Vanessa Hudgens in his white tracksuit, when that was all the way back in 2006.

via Disney
In the past six years, he’s transitioned from star of cheesy musicals to legitimate heartthrob, charming us in roles as TV stars, mysterious soldiers, and, um, boys in their underwear? (Yeah, we have no idea what he did in The Paperboy, but we certainly enjoyed it.)

While scouring Tumblr for the best images of Zac, we came across some interesting trends. First off, the photos are mostly wacky shots of him from his Disney era, so you get to enjoy that.

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Then we start to transition into the sexier stuff. Like, who can forget the Rolling Stone cover that made us all say, “Look at Troy Bolton’s abs!”

Not to mention sexy animal photo shoots…

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…then drool-worthy twitpics.

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The majority of GIFs are him either licking his lips or stretching his arms behind his head (shirt optional). Seriously, it’s insane how often he does the same pose over and over. Probably because it’s so very successful. These I’ve included without commentary… well, except for providing “Breaking Free” — the best HSM song — for your listening pleasure.

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via ONTD
OK, “Bet On It” comes in at a close second as best HSM song. Here you go:
Happy birthday, Zac!














