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Doug Ingle, the singer and organist for Iron Butterfly, has died.

“Iron Butterfly” At Fillmore East

His son, Doug Ingle Jr., broke the news onsocial media.

Its with a heavy heart & great sadness to announce the passing of my Father Doug Ingle.

Dad passed away peacefully this evening in the presence of family, he wrote.

Thank You Dad for being a father, teacher and friend.

Cherished loving memories I will carry the rest of my days moving forward in this journey of life.

No cause of death was given.

Ingle was the last suriving member of the bands original lineup.

He founded Iron Butterfly with drummer Ron Bushy, bassist Lee Dornan, and guitarist Erik Brann.

Ingle wrote the bands most famous song, In-A-Gadda-Da-Vida.

The song was written by Ingle while drinking a gallon of wine,according to Bushy.

His slurred saying of In the Garden of Eden became the songs title.

The album version of In-A-Gadda-Da-Vida was 17-minutes long and took up the records entire B-Side.

A shortened radio version reached number 30 on theBillboardHot 100.