There are various bands and musicians 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 band, formed in 1995.