The crowd at Rock al Parque 2012. Photo: Diego Santacruz/AP Rock al Parque With one of the richest musical cultures in the Americas, Colombia has added rock to its repertoire. Devout fans of the music that inspired generations of American and British teenagers since the 1950s have been gathering every year in Bogotá's Simón Bolívar Metropolitan Park for Rock al Parque (Rock in the Park), the region's largest annual rock festival.