Zac Efron's Birthday: Actor Turns 24 (PHOTOS)

Happy Birthday, Zac Efron!

The former Disney star turns 24 Tuesday, and boy has he really come a long way since his "High School Musical" days.

We've watched him go from a crooning high school student to a bona fide movie star, complete with a Hollywood-worthy relationship with former girlfriend Vanessa Hudgens.

We're not sure what Efron is doing for his birthday, but we really wish we could be there to help him celebrate.

Check out some flashback photos of the birthday boy below!

Zac Efron