Formed in 1966, Iron Butterfly has performed throughout the world. Their mega hit song "In-A-Gadda-Da-Vida" is a quintessential anthem to the 60's generation.

Iron Butterfly is an American rock band, formed in San Diego, California in 1966, among band members who used to be "arch enemies." They are 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. (Wikipedia)