Goodbye, home! Hello, Rome! Lizzie, along with classmates Gordo, Kate, and Ethan, is celebrating with a graduation trip to Italy to experience la dolce vita -- and some awesome pizza! In a whirlwind of comic events, Lizzie is mistaken for Italy's biggest pop diva, Isabella, and falls for Paolo, Isabella's handsome singing partner. Transformed from awkward teen into international pop star, Lizzie now has the choice of a lifetime.