Happy birthday, Zac Efron! The actor and TV personality turns 36 today, October 18, and it's clear to see that the American star has transformed quite a bit in his nearly two decades in the spotlight.
While Zac has solidified himself as a Hollywood heartthrob, thanks to his chiseled features and equally chiseled six pack, he's embraced some vastly different looks over the years for some of his roles while maintaining his natural charm.
Relive in photos some of the actor's biggest (and hottest) transformations over the years for his onscreen roles…
The actor rose to fame as lead Troy Bolton in the "High School Musical" franchise, sporting a swoop and a fresh face, not unlike the Justin Bieber look that blew up in 2010
In the middle of his HSM heyday, Zac starred as the suave Link Larkin in 2007's "Hairspray," sporting a debonair and slick jet black 'do evocative of the '60s
(Seen here at The 2015 MTV Movie Awards) The actor finally shed his Disney image with 2014's adult comedy "Neighbors," with his shredded physique making him an instant sex symbol
The 2022 Vietnam War-set comedy "The Greatest Beer Run Ever" saw Zac return to his earnest roots once again with a darker dye job and facial hair to match
Set to release later this year, "The Iron Claw" sees the actor undergo his first major transformation as he portrays wrestler Kevin Von Erich, sporting a mullet and a much more muscular physique
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