Iron Butterfly founder Doug Ingle dead at 78

Singer and keyboardist Doug Ingle of the rock and roll band "Iron Butterfly" performs onstage at the Fillmore East on February 1, 1969 in New York City.

The last surviving original member of American psychedelic rockers Iron Butterfly has died.

Doug Ingle was the band's lead singer, primary songwriter and organist. His son, Doug Ingle Jr, said in s statement today: "It’s with a heavy heart and great sadness to announce the passing of my Father Doug Ingle.