Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts. SAN DIEGO, CA - JULY 19: Musician James Hetfield of Metallica ...

Thanks to a deluxe reissue, Metallica’s Load appears on six U.K. charts, and even manages top 10 debuts on both the vinyl and physical albums lists. UNITED KINGDOM - JANUARY 01: Photo of Cliff BURTON ...

There can be endless debates about the genre's GOAT, but without a doubt, Metallica are the most successful band to ever play heavy music. Other classic metal bands have played it safe enough to have ...