Was Oystein "Euronymous" Aarseth a guitarist in the band or co-founder of the band Mayhem?
Parabellum (band) Parabellum were a Colombian extreme metal band from Medellín active in the 1980s. The band was described by "Terrorizer" magazine as one of the world's first black metal bands, as well as the first extreme metal band from Colombia and one of the very first from all South America. According to writer Emilio Cuesta, Øystein "Euronymous" Aarseth—a musician associated with the early Norwegian black metal scene—has said Parabellum and Medellín's Reencarnación were both influential to his own band Mayhem.
Sinergy Sinergy was a Finnish metal band started in 1997 by American musician Kimberly Goss. The idea for a "balls-out female-fronted metal band" was first formed when Kimberly Goss of Dimmu Borgir met Jesper Strömblad of In Flames whilst on tour in 1997.