Ah, High School Musical. It was when we first fell in love with Zac Efron and first noticed Vanessa Hudgen's slaying style. 

It's been ten years since we listened to the gang sing We're All In This Together, and now they really are all in it together again for a special telecast of the movie to celebrate the anniversary. 

Vanessa Hudgens, Ashley Tisdale, Corbin Bleu, Luke Grabeel and Monique Coleman all came together to film the special show which will air this month. 

And don't worry, Zac Efron will also appear in the telecast, but for now, here's the casts fab Insta's from behind the scenes: