AS some of you may know the voice we hear of Troy Bolton is credited as being played by the hunky Zac Efron but did you also know that his singing voice had be layered with that of Canadian actor, Drew Seeley's? This raises many questions as to why it was needed, though official claims are that Zac's voice was at a pitch that meant he wouldn't sound good with the other actors. It also through Efron's talents as an actor/singer into dispute as to why he needed his voice blending for the soundtrack of a musical that he had been picked for. It has been confirmed that he will do all his own singing on the next High School Musical film but what do you all think about this subject?