Iron Butterfly

Antiwar songs by Iron Butterfly
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Iron ButterflyFormed in San Diego, California, Iron Butterfly is an American rock band best known for the 1968 hit "In-A-Gadda-Da-Vida", providing a dramatic sound that led the way towards the development of Hard rock and Heavy metal music.

https://en.wikipedia.org/wiki/Iron_But...
http://www.ironbutterfly.com/