When Biggie Smalls rapped “Grab your dick if you love hip-hop,” you best believe a bunch of hands went to a bunch of crotches. And to this day, when Joan Jett belts out “I Love Rock ‘n’ Roll”, she knows damn well she’s not alone in digging the sweet, sweet racket made with guitar, bass, and drums. That’s because rap and rock are well entrenched in popular culture. You can’t imagine life without them. But not all genres have that kind of widespread appeal. One man’s earworm is another’s power drill to the brain, and that’s the idea behind this celebration of divisive musical genres.