Cuca Roseta's style incorporates influences form jazz, bossa nova, and world music, but maintaining the purity, minimalism and simplicity of traditional fado and emphasizing narrative and meaning. Roseta has shown her versatility and curiosity with multiple international collaborations. She has sung in languages other than Portuguese, for example on the songs "Bésame Mucho" with Julio Iglesias, and "Tum Hi Ho", a Bollywood hit by Mithoon. In her live performances Roseta includes both traditional songs and more modern pop, commercial ballad and Brazilian-style songs.
