The Lizzie McGuire Movie

The Lizzie McGuire Movie is a 2003 comedy movie based on the Disney Channel series Lizzie McGuire.
Plot.
Lizzie and her class travel to Rome. There Lizzie meets at the Trevi Fountain Paolo Valisari, an Italian singer. He tells Lizzie that he should sing with Isabella Parigi, a popular singer. But Isabella don't wants to sing with him, so he asks Lizzie to sing playback for her. Lizzie looks exactly like Isabella, only the hair is different. She says yes. At the airport Gordo meets the real Isabella, she knows Paolo's plan: He doesn't want to use Lizzie's playback so it will seem like Isabella can't sing. In the end Isabella came and sang for Lizzie, and Lizzie sang, too. Lizzie is a good singer, but Paolo is a bad singer, he always sings playback.