En secret, Miley Stewart est Hannah Montana, une jeune pop star. Dans la vie de tous les jours, son entourage - à l'exception de ses proches amis - ne savent rien de sa double identité. At home and school, she's Miley Stewart, a typical teenager, but when the lights go down and the curtain goes up, she emerges as the glamorous and talented Hannah Montana. Having the "Best of Both Worlds" is a complicated proposition, and keeping her identity under wraps leads Miley and her friends into some hilarious capers as she tries to balance her normal life with her rock star persona.