What is pop music? It used to be a pretty simple question, but in the last few decades, changes in the landscape of music consumption and distribution have begun to dissolve the boundaries between genres, and not even the carefully curated landscape of pop has been safe. There are many examples of the increasingly obscure, esoteric, and divergent soundscapes that have come to define modern pop, but if I had to sum it up in one artist, I think the clear choice is Billie Eilish. So let's talk about her.