"High School Musical: The Musical: The Series" Adds Corbin Bleu, Lucas Grabeel, and Monique Coleman

Good news, wildcats - the fourth "High School Musical" movie is finally coming to fruition . . . just not in the way you might have expected. In a highly meta plot twist, for the fourth season of "High School Musical: The Musical: The Series," the students of East High learn that "High School Musical 4: The Reunion" is being shot on their very own campus. This means that the series itself is going to include "High School Musical 4" and will serve as the host for a massive High School Musical reunion. The students in "HSMTMTS" also find out that they will be playing extras in the movie, Joshua Bassett, Sofia Wylie, Matt Cornett, and Dara Reneé confirmed at Disney's D23 Expo on Sept. 10. On Sept. 23, Disney+ announced that they'll be joined by some familiar faces from the original High School Musical movies like Corbin Bleu and Monique Coleman. Read on to find out everything else we know about the upcoming season and the long-awaited reunion movie. Related: Disney Announces "Inside Out 2," New Movies "Elio" and "Wish," and More at D23 Expo