Longtime fans ofHigh School Musicalknow thatZac Efronisn't the only vocalist behind his character Troy Bolton's songs in the first movie. However, directorKenny Ortegashut down claims that the actor's voice isn't featured in the film. Speaking withEntertainment Tonight,the legendary choreographer explained that Efron did, in fact, sing all of the songs inHigh School Musical. His vocals were mixed with actor Drew Seeley's. "The songs were written before Zac got the role," Ortega said. "So although he could sing, and he had a lovely voice, it wasn't the voice that the songs were written for. So he sang everything and we dubbed parts of it, so that it had greater vocal strength." Tim Mosenfelder/Getty It's no secret that Seeley's powerhouse voice is prominently featured inHigh School Musical. He even stood in for Efron during thelive concert tourfor the film while the actor was makingHairspray. Seeleyaddressed recordingTroy Bolton's vocals on theMagical Rewindpodcast last year. "I was never told why they did it the way that they did it," Seeley told hosts Will Friedle and Sabrina Bryan. "But I think that they were within about three, four weeks of shooting the actual film, and they had me and not Zac. Me and the rest of the movie cast all go into the studio for, like, four days straight and record all the songs together. So, yeah, I knew that I was doing that." Want more movie news? Sign up forEntertainment Weekly's free newsletterto get the latest trailers, celebrity interviews, film reviews, and more. Clayton Chase/WireImage It's unclear when Efron recorded his parts, but Ortega said it's a misconception that Efron didn't sing at all in his breakout role. "That's important that people know that Zac Efron did sing," Ortega said. TheIron Clawactor sings all of the tracks himself in the subsequent sequels. Seeley went on to star in a different teen musical movie,Another Cinderella Story,alongside Disney Channel alumSelena Gomez. Read the original article onEntertainment Weekly