No band defined and lived up to the term power metal than Pantera. After a shameful glam rock period in the eighties, they roughened their sound and made it absolutely huge, brutal and razor-sharp, starting with the 1990 platinum-seller Cowboys From Hell. Guitarist Dimebag Darrell became the six-stringer that influenced everyone thanks to the thickest and meanest sound around, a keen sense for killer riffs and virtuosic solos that included blues influences and weird effects.