The winner of the W:O:A Metal Battle 2004 was the German doom metal respectively stoner rock band Gorilla Monsoon.
Gorilla Monsoon took the Wacken Metal Battle 2005 crown on the Louder Stage at Wacken Open Air — global champion of that edition, chosen from the winners of national finals around the world.
They join the line of bands the world heard first at the Wacken Metal Battle — from RECKLESS TIDE in 2004 through Expellow in 2025.