At Eurovision
As Finland had not qualified for the final in their previous attempts, the song was performed in the semi-final. Here, it was performed sixteenth, following Ukraine's Tina Karol with Show Me Your Love and preceding the Netherlands' Treble with Amambanda. At the close of voting, it had received 292 points, placing first in the 23-strong field and qualifying for the final.
In the final, it was performed seventeenth, following Greece's Anna Vissi with Everything and preceding the Ukrainian entry. Having led the voting for most of the telecast, it ultimately received 292 points again, winning the competition, breaking the previous record (held by Ruslana with Wild Dances) for the highest points tally in Contest history as well as achieving the unusual feat of emulating its semi-final performance exactly.
Commentators were generally positive about the band and the song, with even the notoriously acerbic Terry Wogan seeing it as something of a good thing for the Contest (Although he sarcastically compared Mr. Lordi to Roy Wood).
It is the second Eurovision song with the word hallelujah in its title. The first one is Israel's Hallelujah, which got first place at the 1979 Eurovision Contest
Read more about this topic: Hard Rock Hallelujah