No one knows why non-existent bands have started showing up on Spotify playlists

Spotify has officially acknowledged a curious phenomenon that's manifested itself recently across the streaming music service's platform. Fake artists and bands with strange names -- and practically no Internet presence at all -- have been showing up on legitimate Spotify user playlists. And, presumably, getting legitimate streaming revenue when their fake songs get played. The bands that are putting a digital, streaming spin on that old bit of wisdom about faking it till you make it include act...