Heavy metal has always been more than just a music genre, and it’s a culture, a movement, and for many, a way of life.

And of course, Hammett says Black Sabbath’s first three albums “are like gospel” to metalheads. Specifically, the Exodus co-founder lists the 1975 song “Symptom of the Universe” as one that changed ...

Metallica 's Kirk Hammett named one particular guitar riff that he believes "shifted heavy metal." ...