It's been over a decade since the first High School Musical [1] movie debuted on the Disney channel, and in the time since, the cast has spiraled off into wildly different directions [2]. But if we learned anything during our time with the crew, it's that once you're a Wildcat, you're always a Wildcat. Coming off the epic 10-year reunion in 2016 [3], the latest mini get-together featured the two biggest starlets from the series, Ashley Tisdale [4] and Vanessa Hudgens [5]. Tisdale welcomed her former costar to her YouTube channel to sing a sweet cover of "Ex's & Oh's." Considering how the two never had a duet in the HSM movies, it's like we're getting the pairing we never knew we needed . . . until now.