Efron's career reached a turning point with the teen musical television film High School Musical (2006), which premiered on the Disney Channel in January 2006. The film, which has been described as a modern adaptation of Romeo and Juliet, saw Efron playing the male lead Troy Bolton, a high school basketball player who feels conflicted when he finds himself interested in participating in the school musical with Gabriella Montez (Vanessa Hudgens), a girl from the scholastic decathlon team. The film, which also starred Ashley Tisdale, Lucas Grabeel, Corbin Bleu, and Monique Coleman in pivotal roles, became a major success and helped Efron gain recognition among teenage audiences. The film's soundtrack was certified quadruple platinum by the RIAA, making it one of the best-selling albums of the year in the United States. Efron's singing talents were disputed when it was revealed that his voice had been blended with Drew Seeley's on the soundtrack, but Efron clarified that the songs (written for a tenor) were written before he was cast and therefore did not suit his more baritone vocal range. In his subsequent musical films, Efron did his own singing.