Jack Antonoff Says Bad Mushroom Trip After Sister Died Stopped Him from Drugs [Video]

Jack Antonoff had a life-changing experience taking mushrooms when he was grieving the loss of his sister.

In a new interview with Apple Music’s Zane Lowe on Tuesday, Antonoff, 39, reflected on a time growing up when he and his friends would “get really f—ed up” on pills, before the fentanyl epidemic made them inherently dangerous.

He was 18 years old still, experimenting with drugs and touring with his band Steel Train when his younger sister Sarah died of brain cancer at 13 years old.

“We were touring a lot and I was obviously just so f—ed up emotionally that I took a whole bunch of mushrooms one night with some friends and I completely freaked out,” he recalled, referring to a time when he was grieving her death. “I completely lost my mind.”

“And I think it was a combination of how much I took and the grief and the long story short is I was so f—ed up from …