To
quote Bill Haley, who prety much invented rock, it is volatile mix of country and pop. At least, originally it was. It has its roots with black R&B dudes and folk singer type guys. Then
white people started mixing it with country & pop (see above), and it started to become rock 'n' roll. Starting in the mid '50s, people such as Chuck Berry, Buddy Holly, Elvis Presely, and others created a whole new genre. In teh early '60s, surf bands like
the Beach Boys and others started chaning it a bit. y the late '60s, it started to lose sight of its purpose. Hippies started transforming it from realtively short and fast songs into long, slow, boring songs about God-knows-what. By the '70s, bands like the Ramones starting to
bring it back to its roots, only with a harder edge. Around this time, metal was created. Metal is hardly rock. Then it got pop-ified in the '80s, then it transformed into a bland, repetitive, boring commerical music in the '90s, finally being pashed out of mainstream society by metalheads and ganster rap people.