Simón Echeverría Romero, also known as "Big Simon", (9 July 1972 – 31 July 2006) was a Chilean record producer best known for his work with Alejandro Sanz, Amaral, Celtas Cortos, Nacho Vega, Rosana, Joaquín Sabina, Mägo de Oz, Luis Cobos, Saratoga, Los Pecos, Sergio Dalma, Sôber, Stravaganzza, Skizoo, Dark Moor, WarCry, Ebony Ark, Coilbox, Dreamaker, Silver Fist, Miguel Bosé, Terroristars, Infernoise, FreakMind, etc.