Fewer things test the patience of a rock or metal fan more than hearing the word 'pop' used to describe the music they love. Is it a stereotype? Yes, but not without merit. Rock and metal fans love their music for the power and aggression, the aspects that keep their favorite bands from breaking into the mainstream in almost every case. When they hear the word 'pop' come from a reviewer, or a press release, there's fear dripping from their pores. Pop music is for teenagers and people who never had the good taste to discover Led Zeppelin, not for tenured fans of 'real music'.