There are various bands called Hydra.
1) Hydra is an American southern rock band founded in the late 1960s by Spencer Kirkpatrick (guitar), Wayne Bruce (vocals/guitar), and Steve Pace (drums).
2) The Dutch rock band Hydra formed in 1970 who had a few No. 1 chart hits in the Netherlands Top 40 and who are still going today www.hydramusic.nl
3) Hydra is a depressive black metal/dark metal band from Santiago, Chile
4) Hydra is a swedish melodic death metal/melodic black metal…
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