Article continues below advertisementZac Efron's early singing skills are getting roasted online after a leaked audio clip allegedly revealed his original vocals from High School Musical.A recording posted Wednesday, November 12, on social media claims to feature Efron's demo of "Get'cha Head in the Game," one of the film's signature songs. While Efron played Troy Bolton in the 2006 Disney Channel hit, the version used in the movie was actually sung by actor and singer Drew Seeley.