Author: Disney
Description:
High School Musical is a story about two high school juniors from rival cliques – Troy Bolton, captain of the basketball team, and Gabriella Montez, a beautiful and shy transfer student who excels in math and science. Together, they try out for the lead parts in their high school musical, and as a result, divide the school. Despite other students' attempts to thwart their dreams, Troy and Gabriella resist peer pressure and rivalry, inspiring others along the way not to "stick to the status quo". Sharpay Evans, a drama queen and high school diva will do anything to sabotage the friendship between Troy and Gabriella and also get a lead in the school musical.

Yes the stereotypes of the characters include:
Gabriella and Troy earn the lead roles, beating out Sharpay Evans, who had previously tried to thwart her chances of making the callbacks.
Sharpay Evans:
She is the co-president of the East High drama department alongside her fraternal twin, Ryan, with whom she has starred in seventeen school productions. Sharpay appears to have the most power in the drama department, leaving Ryan as her right-hand man. However, the sibling loyalty is not always mutual. Classmate Taylor McKessie suspects that if Sharpay "could figure out how to play both Romeo and Juliet, her own brother would be aced out of a job." Sharpay's family is very affluent; their wealth stems from the country club, Lava Springs, her parents own. In High School Musical, Sharpay is shown as being somewhat popular. Students on campus seem to fear her, as they scour to make room for her in the hallways or cafeteria. Fear also appears to be the reason why other students, such as Kelsi Nielsen, remain a part of Sharpay's posse. Sharpay is sometimes the victim of playful jokes and light teasing from the East High basketball team, despite the fact that one of their star players, Zeke Baylor, has a crush on Sharpay. Sharpay's talents are challenged for the first time when Gabriella Montez and Troy Bolton are called back for the lead roles in the musical. To ensure that she and Ryan remain in the spotlight, Sharpay convinces Ms. Darbus, the musical's director, to switch the