Heavy metal music
Critics disagree over who can be thought of as the first heavy metal band. Most credit either Led Zeppelin or Black Sabbath, with American commentators tending to favour Led Zeppelin and British commentators tending to favour Black Sabbath, though many give equal credit to both. A few commentators—mainly American—argue for other groups including Iron Butterfly, Steppenwolf or Blue Cheer. Deep Purple, the third band in what is sometimes considered the "unholy trinity" of heavy metal (Black Sabbath, Led Zeppelin, and Deep Purple), despite being slightly older than Black Sabbath and Led Zeppelin, fluctuated between many rock styles until late 1969 when they took a heavy metal direction.
Heavy Metal (magazine)
Heavy Metal is an American science fiction and fantasy comics magazine, known primarily for its blend of dark fantasy/science fiction and erotica. In the mid-1970s, while publisher Leonard Mogel was in Paris to jump-start the French edition of "National Lampoon", he discovered the French science-fantasy magazine "Métal Hurlant" which had debuted January 1975. The French title translates literally as "Howling Metal".