There is more than one band with this name: 1) The most well-known and recognized Pentagram, from Arlington, Virginia, United States of America, is one of the earliest doom bands around. Having been around in one form or another since 1971, it's safe to say that Pentagram had a big impact on Sabbath inspired Doom Metal that was to follow over the next decade. The band also strongly intertwines with the band Bedemon and is sometimes seen as one and the same.