Can you believe that it has been 9 years since High School Musical first aired on Disney Channel? While we're still singing "We're All In This Together," having dance-offs and dreaming up crème brûlée recipes, the actors in one of our fave movies of all time have totally grown up!
Since it's Flashback Friday, we've decided to see exactly how much the stars have changed up their hair and makeup styles over the years. You'll be shocked to see how different some actors look now!
Click through the gallery to see surprising before-and-after pics of your fave actors transforming through the years.