ICS Vortex | |
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| Background information | |
| Birth name | Simen Hestnæs |
| Born | 4 March 1974 Oslo, Norway |
| Genres | Symphonic black metal, doom metal, progressive metal, folk metal, avant-garde metal, black metal, Viking metal, progressive rock |
| Instruments | Bass, vocals |
| Years active | 1991–present |
| Labels | Century Media |
Simen Hestnæs (born 4 March 1974), better known by his stage name ICS Vortex or simply Vortex, is a Norwegian musician. He is the vocalist of the similarly named band ICS Vortex, the avant-garde metal band Arcturus and the doom metal band Lamented Souls. He is also a vocalist and the bass guitarist to the heavy metal band Borknagar, and the former bass guitarist and clean vocalist for the symphonic black metal band Dimmu Borgir.