There are (at least) four bands named Amarok:
1) Amarok is a black metal band from Szczecinek (Poland), formed in 2003.
2) Amarok, named after the Inuit word for 'giant wolf', are a spanishprogressive rock band, with mediterranean and Middle Ages musical influences. The group was founded in 1990 by Robert Santamaría and Lídia Cerón.The band address environmental issues ,and much of their material is recorded using solar powered equipment. Official site: http://www.amarokweb.com/