Grab your gowns and flip those tassels, the senior class at East High is graduating. But while Troy, Gabriella, and Sharpay might shed a few tears at the prospect of separating, not “High School Musical 3” star Zac Efron, who told MTV News that the chance to once again don a Wildcat jersey has him smiling - even if it is for the last time.

“‘High School Musical’ is unlike anything. No one can fully understand. It’s just all of us in a group having fun,” Efron insisted when we asked if returning for the last installment would be a bittersweet experience. “We really became best friends during this project, the whole cast. It’s like not even work. We just have the time of our lives out there.”

Part of that, of course, is a familiarity that borders on routine, which Efron said makes going back “no pressure.” But for the 20-year-old star trying to make his way as a more serious actor, in projects like “Seventeen Again” and “Me and Orson Wells,” part of the allure of returning to “High School Musical” is the chance to be, well, an unabashed kid.

“It’s exciting to go back and just sing cheesy songs and dance,” he chuckled.

It’s a pleasure Efron will get to experience for the last time, he said, confirming reports that “High School Musical 3” will be the very last installment in the insanely popular franchise.

“This is going to be the farewell to the East High Wildcats for a while. Senior year, graduation, this movie is the climax, it’s the third act, this is the legacy that we leave on East High,” Efron said. “I think it’s going to be a good way to go out with a bang.”

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