Iron Butterfly
An American rock band formed in 1966 in San Diego, California, playing heavy acid rock with elements of progressive rock. International fame was brought to Iron Butterfly by the single "In-A-Gadda-Da-Vida" (#30 US, 1968), the first "heavy" composition to be heard in American radio broadcast and, as noted by some sources, one of the first works in the heavy metal genre. Four of the band's albums rose into the top twenty of the Billboard 200; the album In-A-Gadda-Da-Vida (#4, US, 1968) sold a total of more than 25 million copies. Iron Butterfly was reformed multiple times; the quartet created in 2004 by Ron Bushy and Lee Dorman, members of the classic lineup, continued to function right up until Dorman's death in December 2012. In 2014, the band reunited again.