Warning: This story contains allegations of sexual harassment and drug harm. Australian music legend John Farnham makes a series of disturbing claims about his late former manager in his new book. Australian music legend John Farnham makes disturbing claims about his late former music manager in his new book, revealing that he was secretly drugged “for years” in the early part of his career.

In new excerpts from his memoir The Voice Inside published by The Australian overnight, Farnham opens up about the mistreatment he suffered from manager Darryl Sambell during the early years of his career, when he was a teen pop idol in the 1960s with hits like Sadie the Cleaning Lady. Farnham writes that Sambell “drugged me for years and I had no f***ing idea,” until one day he discovered a half-dissolved pill in the bottom of his cup of coffee..