The actor recently made headlines for some negative remarks he made about his character from the film. The Men's Fitness June 2016 cover star didn't seem to be the biggest fan of Troy Bolton (his character) telling the mag of his younger self, "I step back and look at myself and I still want to kick that guy's ass sometimes."
He continued, "Like, f--k that guy. He's done some kind of cool things with some cool people—he did that one thing [Neighbors] that was funny—but, I mean, he's still just that f--king kid from [High School Musical]."
The hunky star captioned the flashback Friday photo from 2008, "So grateful I came across this picture... with the o.g. crew during one of the most cherished times of my life.
Efron was recently noticeably absent from a HSM reunion. At the top of the year, Hudgens, Tisdale, Lucas Grabeel, Bleu, and Monique Coleman reunited in a Los Angeles high school gym to celebrate the Disney Channel movie's 10-year anniversary.
The group taped segments that aired during a special telecast of High School Musical on Jan. 20 on the Disney Channel. Efron still appeared through a separate pre-taped message.
In March, Disney announced fans would be returning to East High for High School Musical 4, where we'd meet new Wildcats and also get to know their rivals, the West High Knights.
"High School Musical is part of Disney Channel's DNA," Disney Channel President Gary Marshsaid. "It embodies all that we stand for. As a way of continuing to embrace that heritage, we're excited to announce 'the start of something new' as we launch a search for a new class of East High Wildcats to star in a fourth installment of the 'High School Musical' franchise."