There is perhaps no debut album that influenced all types of extreme metal more monumentally than Venom's 'Welcome to Hell.' The British act's first record helped spark the metal sub-genres of thrash metal, death metal and black metal all at once and completely by accident.

The gritty and unpolished production featured in 'Welcome to Hell' can be attributed to the path Venom took while recording the album -- the band originally planned to simply create a demo instead of a full-length debut.

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