According to Nielsen Music, which collects and compiles the sales data used to tabulate Billboard’s charts, Metallica was the top rock artist for 2017. Also, the band’s latest album, “Hardwired… To Self-Destruct” was the second-best-selling rock album of the year in America. The first album in sales was “Guardians Of The Galaxy Vol. 2: Awesome Mix Vol. 2 (Original Motion Picture Soundtrack)”, which features songs by ELO, Fleetwood Mac, Cheap Trick and George Harrison. Ed Sheeran’s “Divide” was Nielsen Music’s Top Album of 2017 in the U.S.