Sumo was a 1980s Argentine alternative rock band, merging post-punk with reggae. Headed by Italian-born Luca Prodan, it remained underground for most of its short activity, but was extremely influential in shaping contemporary Argentine rock. Sumo introduced British post-punk to the Argentine scene, with many lyrics in English. And provided a visceral counterpoint to the progressive and nueva canción influences then dominant in Rock en Español.