 The number of stages has changed over the time, ranging from 2 to 4.The festival's concept is to every year gather important and newcoming bands from all over Ibero-America for three days to create a space for alternative music and new proposals from different Spanish-speaking bands.In the history of the festival there's been a series of important musical performances by many artists from Latin America and Spain, such as Café Tacuba, Enrique Bunbury, Charly Garcia, Aterciopelados, Los Tres, Caifanes, Bersuit, El Cuarteto de Nos, Illya Kuryaki and the Valderramas, Los Planetas, Gustavo Cerati, Los Amigos Invisibles, Babasónicos, Miguel Ríos, Celso Piña, Los Jaigüey, El Tri, Los Ratones Paranoicos, Nortec Collective, Sepultura, Divididos, Transmetal, Ángeles del Infierno, 2 Minutos, Control Machete, Los Bunkers, etc.