An Ultimate Timeline of Zac Efron's Hair

As the young Cameron Bale in Summerland (a show that deserves to be remembered), Efron's wind-swept hair was perfect for portraying a California teen in the early aughts.

The slightly wrinkled grey cargo shirt. The slightly unkempt hair. The youthful smile. It's the perfect look for the beginnings of a star in the making.

It was his shaggier locks—and maybe his performance—in High School Musical that jumpstarted Efron's career and put him on the map as one of the stars to watch.

Aw, look—Zac's starting to grow up! With a suit and a side-swept bang, it's no wonder girls (and guys!) worldwide fell in love with the former Disney star.

Oh, the chain necklace, white v-neck tee and vest—so 2007. There's no look Efron can't pull off, especially with showing off just a tiny bit of muscle.

Am I the only person who loved Efron's 1960s ensemble in Hairspray? To portray the hunky Link Larkin, Efron dyed his hair black and gave the air of a young Elvis. Can you stop the beat of your heart?

Even while wearing a simple button-up and sitting courtside of a Lakers game, the actor's hair game is truly effortless.

Efron might've been rocking the Troy Bolton hair throughout filming the HSM trilogy, but paired with a Henley tee, Efron's casual Cali style gets a subtle update.

I wonder if Efron's unkempt bowl cut (shown here at the 2009 MTV Movie Awards) became the inspiration for many young men in the early 2010s... You're welcome, Justin Bieber.

Well, the 17 Again actor sure knows how to clean up, with his slightly coiffed hairstyle and skinny tie combo at an appearance of The Late Show with David Letterman.

Ah, the 2010s. Efron's roles might've started becoming more diverse during this time, but his shirt and hair combo in Charlie St. Cloud feels like he got stuck in the mid-late aughts.

A man can never go wrong when he dons a classic black suit. But add Efron's styled hair and beard, he looks debonair for a movie premiere.

I'm not sure if it was Efron's short hair or his motorcycle skills, but the actor definitely stood out in 2011's New Year's Eve.

A subtle hair change, some facial hair and a blue patterned shirt leaves Efron looking casual, yet fashion forward. Talk about impressive.

An updated Link Larkin? Efron might look like he's about to head to a 1960s red carpet event, but who can resist a man in a tux?

Portraying the swoon-worthy former U.S. marine in The Lucky One, Efron proved that he had the ability to lose his luscious locks and still look great on camera. We applaud Efron's short hairstyle.

To quote the great Justin Timberlake: as long as Efron's got his suit and tie (and slicked back hair,) what could go wrong?

Sure, he might've been suffering from an injured hand. But that didn't stop his look at the 2013 MTV Movie Awards from being on point. The uncoiffed hair style looks cool and gives his hand a rest.

Efron's character might've been a jerk in That Awkward Moment, but the slightly spiked hair paired with a beard and a knit sweater definitely suits him.

...And there he goes again with the hair and suit combo for a taping of The Tonight Show Starring Jimmy Fallon.