Black on both sides

I remember many years ago I wasn't that big a fan of hip hop music and then one night my friend Evan played me a track called "Mathematics" By Mos Def and my world changed. I had never heard anything like it before, his rhymes were so far beyond anything I had ever heard up to that point. It was that moment that I realized there was something in hip hop that I was missing out on and had an instant craving to hear more music like it.