Became a household name as Troy Bolton in the High School Musical franchise

Photo by Mark Mainz/Getty Images

57533917_10

Photo by David Livingston/Getty Images

71054008_10

Photo by Patrick Riviere/Getty Images

With High School Musical co-stars

Photo by Patrick Riviere/Getty Images

76100885_10

Photo by Charley Gallay/Getty Images

85190769_10

Photo by GettyImages

Actors Zac Efron and Leonardo Di Caprio

Photo by GABRIEL BOUYS/AFP/Getty Images

With then-girlfriend Vanesa Hudgens

Photo by Eduardo Parra/Getty Images

85983904_10

Photo by Jason Merritt/Getty Images

93187935_10

Photo Credit: Getty Images

Debuting his very grown-up look

Photo Credit: GettyImages

104156698_10

Photo Credit: GettyImages

with The Lorax co-star Taylor Swift

Photo by Christopher Polk/Getty Images for PCA

with New Year's Eve co-star, Michelle Pfeiffer

Photo Credit: GettyImages

108082983_10

Photo Credit: GettyImages

131604169_10

Photo Credit: GettyImages

140391388_10

Photo by Jason Kempin/Getty Images for NEA

139371777_10

Photo Credit: GettyImages

140936274_10

Photo by Carlos Alvarez/Getty Images

Catch Zac Efron in his new movie, The Lucky One out April 19

Photo Credit: GettyImages