My Life Through Heaven and Hell,' Sum 41's Deryck Whibley recalls the former couple's relationship was "based on sex, drugs, booze and partying."

Deryck Whibley of Sum 41 is opening about the sexual abuse he allegedly suffered during his relationship with the band's former manager, Greig Nori.

Deryck Whibley has accused Sum 41 ‘s first and former manager of emotional and verbal abuse. According to claims outlined in Whibley’s new memoir, “Walking Disaster, My Life Through Heaven and Hell,” the frontman was groomed and sexually and verbally abused by Greig Nori during the first stages of Sum 41’s career.

My Life Through Heaven and Hell,' Sum 41's Deryck Whibley claims the alleged abuse began when he was 18 and lasted until the band fired his purported abuser in 2004.

In Sum 41 frontman Deryck Whibley's new memoir, he recalls dating Paris Hilton amid threats of her sex tape being leaked and how he listened to Hilton cry when she told her parents about the tape.

"Walking Disaster: My Life Through Heaven and Hell," a memoir written by Sum 41 's Deryck Whibley, reveals a painful secret that the frontman says he's kept hidden from his bandmates for years, alleging sexual abuse at the hands of the band's former manager at the height of his fame as a young man.

In his new memoir, Sum 41 singer Deryck Whibley says he was sexually abused by the band's first manager for years. Whibley states that when Sum 41 was just getting started, Greig Nori of Treble Charger started to help the band and became the band's manager.

Sum 41 singer Deryck Whibley is opening up about his early days in the band — and claiming the band’s former manager sexually abused him. In Whibley’s new memoir, Walking Disaster: My Life Through Heaven and Hell,

Sum 41 frontman and guitarist Deryck Whibley writes in his new memoir, Walking Disaster, that the band’s former manager, Greig Nori, sexually abused him as a teenager, per The L.A. Times. Whibley also states that Nori verbally abused him and accused him of grooming.