Both bands are nominated for best international band and have guitarists up for 'shredder' of the year. Slipknot are also nominated for best live band, while Amon Amarth make the best breakthrough artist shortlist.
Metal veterans Metallica are nominated for best international band, while Iron Maiden, Motorhead and Saxon take on relative new-comers Gallows and The Answer for best UK band.
Alongside the eight awards voted for by fans, there will be another nine Golden Gods chosen by the Metal ...
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