She achieved mainstream success as Maddie Fitzpatrick in the Disney Channel series The Suite Life of Zack & Cody.This success was heightened when she starred as Sharpay Evans in the High School Musical franchise.Records, releasing her debut album, Headstrong (2007), through the label.The album was a commercial success, earning a gold certification from the Recording Industry Association of America (RIAA).Tisdale starred in the High School Musical spin-off film Sharpay's Fabulous Adventure (2011), releasing a soundtrack to promote the film.This marked her final portrayal of the character to date.
The success of the films led to Tisdale signing with Warner Bros.
At the age of three, Tisdale met her manager, Bill Perlman, at a New Jersey mall.
He sent her to various auditions for commercials, and she was placed in more than one hundred national network TV advertisements as a child.
During this time, Tisdale continued to work and attend school, stating "I was always in regular school and I worked in clothing stores growing up.
I didn't 'make it' until I was 18, so I had already graduated public school.