PBS Idea Channel S01 E10 Are Mashups the End of Music Genres As We Know Them?

Some of the best things to be found on the internet are music mashups! It's a strangely pleasing experience to listen to totally unrelated artists commingling on the same music track. Mashups are awesome because they break genre expectations, which makes us think: why have genres at all? Nowadays there's so much cross-pollination in music and art, creating more and more sub-genres, that the larger genre categories are becoming a useless relic.