Lizzie McGuire (Hilary Duff)along with her classmates is celebrating with a graduation trip to Italy. While there, Lizzie is mistaken for Italy's biggest pop diva, Isabella, and falls for Paolo, Isabella's handsome singing partner. Transformed from awkward teen to international pop star, Lizzie now has the choice of a lifetime. Will becoming Italy's next singing sensation also mean leaving her family and close friends behind? It's up to Lizzie to embrace newfound courage and do things she never thought possible.