In 2016, Kanye West spent time in a mental institution after breaking down on stage and accusing JAY-Z of sending his "killers" after him.

His former friend and trainer, Harley Pasternak, was the one who took him to the hospital.

Pasternak told the New York Times what happened that day.

Harley Pasternak, his friend and former trainer, arrived at the musician’s house in Los Angeles that week to find him consumed with paranoid thoughts, including that government agents were out to get him. He was writing Bible verses and drawing spaceships on bedsheets with a Sharpie, while a handful of worried friends and employees lingered nearby. When Mr. Pasternak encouraged him to come to a nearby office he owned, Mr. West emerged with suitcases packed with pots, pans and Tupperware.

Mr. Pasternak, who later provided an account of the incident in a deposition for Mr. West’s touring company as it sought insurance payouts for the canceled shows, took him to the office. A psychiatrist from U.C.L.A. Medical Center and another doctor were among those called to the scene. After observing Mr. West’s behavior escalate — at one point he threw a bottle, breaking a window — the doctor called 911.

“I think he’s definitely going to need to be hospitalized,” he told the operator on a recorded call.

Kanye has since accused Pasternak of trying to control him through medication.