"I just love that we all still love each other and love hanging out with each other and have that connection, you know?" Tisdale shared with ET. "It was a really special moment in our lives."
Tisdale and her HSM co-stars -- Vanessa Hudgens, Lucas Grabeel, Monique Coleman, and Corbin Bleu -- reunited at East High to film the upcoming reunion special. Star Zac Efron is also set to appear in a prerecorded message to the show's fans.
"Nobody thought it was going to be as successful as it was," Tisdale shared. "It was really, purely because of the fans that it was that successful and the fact that they've supported us throughout the years has been amazing."
Tisdale also played a quick game of High School Musical Graduation Superlatives, sharing what she thinks the future holds for some of her former co-stars.
Most likely to win an Oscar?
"I mean, I think like Zac's on the road to winning an Oscar, maybe," Tisdale said.
Most likely to have kids first?
"Let's not [say] me… I'm not having kids any time soon," Tisdale laughed. " she’s going to hate me that I’m saying this right now [but] the pressure is on Monique!"
Most likely to coordinate a reunion?
"I feel like I'm definitely a coordinator," Tisdale said. "I love getting everyone together, throwing these slumber parties with my cast and stuff so probably me."
Although it's unknown what role she actually played in getting everyone together for Disney's highly anticipated 10-year reunion.