this has likely been done before but ill do it anyway
Don't say Metallica because they are popular, I'm relatively new to actually buying this stuff but ads kid my bombarded our road with maiden etc.
If you had to compile a list what would it be, I mean quality too not just crazy noise the groups are:
Slayer, iron maiden, megadeth, forbidden, sodom, heathen, Metallica, over kill and testament
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