Also see: Desconocido (disambiguation).Desconocida (Eng.: Unknown or Stranger) is the title of the fourth studio album by Spanish singer Marta Sanchez (in 1998). With this album, Marta returned to the pop music on her first albums, but now with a more Italian feel. The album was produced once again by Christian De Walden and a few Italian co-producers. The singles were "Quiero Mas de Ti", "Desconocida", "Los Mejores Años de Nuestra Vida", "Estrellas de Fuego" and "Loca de Amor".