Their class visits the Trevi Fountain, where Lizzie is approached by an Italian pop star named Paolo, who mistakes her for his singing partner, Isabella. Paolo asks Lizzie to meet him at the fountain the next day, and she feigns illness to sneak away. He explains that he and Isabella are booked for the Italian Music Awards, but she left Italy after their breakup. Paolo tells Lizzie that Isabella lip syncs, and begs her to pose as Isabella for the concert. Lizzie reluctantly agrees but soon begins to enjoy the experience and to fall in love with Paolo.