The song is 'Hel Goddess of the Underworld' by Hagalaz Runedance.
The Goddess Hel, for your information, is the Norse Goddess of the underworld and she reigns over a place called Helheim. It is not the same place as the Christian hell, although I think they may have gotten the name from it.
Helheim is an alternative to Valhalla to spend the afterlife. People good and bad alike go there. It is not reserved for anyone special. Warriors go to Valhalla, all others go to Helheim.