Tupac Shakur, Michael Jackson, Hatsune Miku, Whitney Houston, and Elvis: Dead Artists Are Killing It In Music

In a bizarre development, largely ignored by the music press, old songs are now outselling new ones. Nielsen reports that 123 million catalog albums (defined as more than 18 months old) were sold last year, versus 119 million new releases. The same trend is evident in the purchase of digital tracks: 485 million old songs were sold versus 480 million new ones.
http://www.thedailybeast.com/articles/2016/06/26/the-zombification-of-popular-music.html