Noticeably absent was Zac Efron, who did send in a video for his former castmates.
“This is only 10 years – let’s have a billion more! I love you guys!” Zac said.
The cast is gearing up for a special rebroadcast that will air on the original airdate, January 20, with new footage of the cast reuniting.
“At one point it literally felt like we were The Beatles,” Vanessa told GMA. recalls “Now it’s like we can go to the coffee store and we’re completely left alone (laughs).”
Watch the High School Musical cast on GMA below!
High School Musical Cast – 10 Years Later on GMA