Mayhem, that's true black metal inferno, while more controversial name coming from the cold northern landscape. Formed in 1984 in Oslo and in addition to its peers such as Darkthrone and Burzum are considered to be one of the pioneers mentioned style. Norwegian beast career hit several tragic events - just to mention the original singer's suicide Yngve Ohlin Pens or death of guitarist Øystein Aarseth (also known under the pseudonym rather Euronymous), who killed his ancient rival, Varg Vikernes of Burzum.
Mayhem is just dark Chaska with everything, even though they now have more incidents generally avoided, they never know what will happen next. None of it but does not deny the fact that Mayhem remain one of the greatest legends of black metal.