What metal group released their  second album  in 1999 by Season of Mist, who has had a Norwegian black metal band formed in 1984 in Oslo on their roster?
Mayhem (band) Mayhem is a Norwegian black metal band formed in 1984 in Oslo. They were one of the founders of the Norwegian black metal scene and their music has strongly influenced the black metal genre. Mayhem's early career was highly controversial, primarily due to their notorious live performances, the 1991 suicide of vocalist Per Yngve Ohlin ("Dead") and the 1993 murder of guitarist Øystein Aarseth ("Euronymous") by former member Varg Vikernes ("Count Grishnackh"), of Burzum.
The Black League The Black League was a metal band from Finland. They were formed in 1998 by Taneli Jarva, three years after his departure from Finnish metal heavyweights Sentenced. The Black League's first two full-lengths carry on the spirit from Taneli's work with his former band, seasoning their metal with elements of traditional rock 'n' roll. On their third release, "Man's Ruin Revisited", these influences take an even more prominent role in their sound. In October 2014, Taneli Jarva pronounced of his decision to call the band the quits due to "lack of personal inspiration".