The Cirith Ungol debut album in 1980 Frost and Fire is often regarded as one of the worst heavy metal albums ever recorded. The songs are cheesy, especially the keyboard ones, the singing dubious and well you can imagine the lyrics
This album is like a "Worst of Hollywood for B-Movies" meaning that the whole album actually becomes quite enjoyable to listen to. For those that don't know, Cirith Ungol is a location in LOTR (they were original as well
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Cirith Ungol - Edge Of A Knife - YouTube