Today marks a big one in the High School Musical fandom: it's the eight-year anniversary of the day HSM 3: Senior Year hit movie theaters. Seriously, it was on October 24, 2008 that the world got to see the Wildcats go on one final adventure together as they graduated East High and moved on to the next chapter of their lives.
In honor of the end of an era that will be rebooted with the release of High School Musical 4, we're taking a trip down memory lane and looking back on tons of secret hidden gems you might've not known about the movies. We're putting your HSM skills to the test here!
Click through the gallery to uncover facts you didn't know about the series and then drop a comment below telling us which of these movies is your all-time fave!