I looked up the South African band. They mostly go by Xavleg. The full name is an initialism for “Acidic Vaginal Liquid Explosion Generated By Mass Amounts Of Filthy Fecal Fisting And Sadistic Septic Syphilic Sodomy Inside The Infected Maggot Infested Womb Of A Molested Nun Dying Under The Roof Of A Burning Church While A Priest Watches And Ejaculates In Immense Perverse Pleasure Over His First Fresh Fetus”. They are a Christian band.

Oh yeah, I forgot that Metallica used to play metal lol

These are all the 2nd most popular after Dethklok.