The kids' TV sensation Hannah Montana launched Miley Cyrus into the pop world. The ‘00s show's bouncy, anthemic theme “The Best of Both Worlds” lays out the plot: Cyrus plays Miley Stewart, an average schoolgirl who lives it up as pop icon Hannah Montana when she isn't in class. Hannah's pop appeal is obvious: The upbeat, pogo-ready “Life's What You Make It” is an inspirational anthem, while on the handclap-assisted “Rockstar” Hannah hides her schoolgirl infatuation in pop-punk bravado. Ballads like “Ordinary Girl” show off Cyrus' vocal range and depict the angst caused by Miley-slash-Hannah's double life.