On 11 January 2004 the "Jovens Tardes" comes to an end with the departure of director Marlene Mattos of the station – who even offered a solo program for Wanessa in the Rede Bandeirantes, which she refused, claiming that she would return to focus on music. In February she joined the main cast of the fourth season of the children's show "Sítio do Picapau Amarelo", where she played the rock star Diana Dechamps, remaining in this until the end of that year, being her most expressive work as an actress. On 12 March, she released her new single, "Me Engana que I Gosto", version of "Miénteme", by Puerto Rican singer Olga Tañón, showing a big difference from previous work not to launch a country-focused flagship.