Back in 2012, Zac Efron told Tracy Smith that his singing voice was dubbed in the first "High School Musical" because he was going through puberty at the time. "A lot of me was changing," he said looking back at the experience. #ZacEfron #HighSchoolMusical #DisneyChannel #HSM #TroyBolton

Comment how many you got right 👀 @Jiji<3 @ayiah soufi 💗🪩 #jijiwonder #ayiahsoufi #glowhouse #zacefron #guessthelogo

Zac Efron can’t stop accidentally dropping the f-bomb 😅 #FallonTonight #TonightShow #ZacEfron #FallonFlashback #JimmyFallon Original Air Date: 05/08/2014