Nielsen: Metallica Was the Most Popular Rock Band of 2017

Nielsen has crunched the numbers and released its annual year-end-report about the music industry. Several trends stand out: Music sales plummeted, with a 17.7 percent year-over-year drop in pure album sales and a 23.4 percent drop in pure track sales Streaming services are consolidating power as on-demand audio streams increased 58.7 percent …