Iron Butterfly co-founder Doug Ingle dies at the age of 78; last surviving original band member

Doug Ingle, co-founder of the 1960s rock band Iron Butterfly and voice behind their cult hit “In-A-Gadda-Da-Vida,” has died at the age of 78.

His son, Doug Ingle Jr., announced his death in an emotional social media post on Friday, Rolling Stone reported. He did not disclose a cause of death.

“It is with a heavy heart and great sadness that I announce the passing of my father, Doug Ingle. Dad passed away peacefully tonight surrounded by his family,” wrote Ingle Jr. “Thank you, Dad, for being a father, teacher and friend. I will carry the loving memories with me for the rest of my life and continue on this journey of life. I love you, Dad.”

Ingle, who sang and played organ with Iron Butterfly, was the last surviving member of the band’s classic lineup from the late 1960s.

Formed in San Diego, Iron Butterfly rose to fame with their 17-minute epic “In-A-Gadda-Da-Vida,” which sold an estimated 30 million copies worldwide.

The title is known to have originated from a drunken misinterpretation of “In the Garden of Eden” by the late drummer Ron Bushy.

The song made a significant cultural impression and even made a memorable appearance in a 1995 episode of The Simpsons called “Bart Sells His Soul.”

It has also been covered by numerous artists, including Slayer and the Residents, and has even been featured in films such as Michael Mann’s Manhunter.

Iron Butterfly disbanded in 1971 but reunited several times over the years. Ingle took part in brief reunions in the late ’70s and ’80s and was a member for longer periods in the ’90s until his retirement in 1999.