Metallica-"Metallica" (1991)

In 1991 Metallica published their album of the same name or also known as "Black Album", for many the beginning of its decadence, for others a heavy metal masterpiece, although everyone agrees that it was a full stop in the career from the band.
Metallica with this album leaves behind their virtuous trash metal that had elevated them to offer a heavy sound, but with a clean sound and much more accessible than their previous four works.
There is no doubt that the production of Bob Rock contributed to the band recording their most commercial album and at the same time the most remembered, for better or for worse.
"Enter Sandman" with that mythical riff, the creepy "Sad Bad True", the heavy "Through The Never" or "Wherever I May Room" or the halftime "The Unforgiven" and "Nothing Else Matters" made up a superb work heavy metal with a dose of old-time trash metal.
Until 2018, some 17 million copies of this album had been sold in the United States and a total of 32 million worldwide.