I don't want to pooh-pooh modern pop. I appreciate that as well, but my personal favorite kind of music is guitar-based rock. I like grunge and garage bands and alternative music, but that's more my personal taste.
So that's why one of my rules of parody writing is that it's gotta be funny regardless of whether you know the source material. It has to work on its own merit.
At this point I've got a bit of a track record. So people realize that when 'Weird Al' wants to go parody, it's not meant to make them look bad... it's meant to be a tribute.