It was the movie franchise that captured our heart, minds – AND nurtured our pre-teen and teen musical aspirations. 

But almost ten years after the release of the first High School Musical, the song which was the movie's very cornerstone – Breaking Free – has been largely forgotten by protagonist Zac Efron.

The actor famously played Troy Bolton opposite Vanessa Hudgens – who played Gabriella Montez – in the hugely successful franchise.

But while promoting his latest release, We Are Your Friends, alongside co-star Emily Ratajkowski and director Max Joseph, 27-year-old Zac had an interview with glossy magazine Cosmoploitan.

And during the course of the segment, he found himself at a loss when asked to identify Breaking Free.

"That's High School Musical. Oh wait… the name of the song?" he says lifting his hands to his face in thought. "The pressure's on – Soarin', Flying, is it?" 

"No! Come on, Zac," the interviewer cries out in disgust. 

"Take A Chance?" the actor next offers, before realising: "Breaking Free!" 

Amid much jeering from Emily and Max, Mr Efron protests: "There's a lot – there's three movies of songs!" 

Of course, in contrast, every self-respecting Disney fan can remember and recite the entire HSM soundtrack instantly.

We're going to assume this was all a momentary indiscretion, so we'll forgive Zac this one time.