Marilia Andrés Casares and Marta Botía met while studying at Madrid's San Agustin School. Originally, the duo dubbed "The Just", and sang exclusively in English. However, once producer Gonzalo Benavides listened to a demo by the duo, he convinced them to begin singing in Spanish.
The duo's initial name was "The Just", and they primarily sang solely in English. However, following the influence of producer Gonzalo Benavides, who was moved by their demo, they decided to shift to singing in Spanish.