During the summer of 2009, Rodríguez made her vocal debut with "Dai muovi muovi" by Mario Gardini, Giovanni Paolo Fontana and Roberto De Luca (the theme song of "Sarabanda", hosted by the singer on Canale 5). The following February she sang Toto Cutugno's "" at the Teatro Ariston, which she also sang at the 2010 Sanremo Festival with Cutugno. Rodríguez (using the stage name Maria Belén) sang "Amarti è folle", written and arranged by Fortunato Zampaglione for the film "Non c'è due senza te", at the Sanremo Music Festival 2015.