El-P aka El-Producto (born Jaime Meline) has been one of the most important and substantial forces in the development of the current underground rap scene. In the last 10+ years, he has been responsible for one of the most influential underground rap groups (Company Flow), argueably the most important underground rap label (Definitive Jux), an undeniably individual production style and a powerful voice for progressing the genre he embraced.