Chop Spaceman - Proper Villains Mashup Nice System of a Down dubstep mashup from Proper Villains. Chop Spaceman - Proper Villains Mashup by proper villains Posted on November 9, 2011 by DJ Real Juicy and filed under Dance Tunes, Dubstep, Mashup and tagged chop spaceman dubstep Mashup proper villains.