Watch Mercyful Fate Play Their First Concert In 23 Years

In the early ’80s, the Danish band Mercyful Fate pioneered a wild, theatrical, occult-heavy strain of heavy metal that proved hugely influential on all sorts of subgenres; thrash and black metal would probably look and sound massively different without the band. Mercyful Fate made two albums before breaking up in 1985, and frontman King Diamond went on to a huge solo career.

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