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.

Throughout the pages of “Walking Disaster,” Whibley describes a fraught and frightening relationship with Sum 41’s first manager, Greig Nori, whom the singer alleges groomed and sexually and verbally abused him for years, starting when he was 16 and Nori was 34.

The duo embarked on a wild short-lived fling after meeting at an LA club in 2003, the rocker wrote about in his new memoir 'Walking Disaster'.

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.

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.

In his new memoir, Deryck Whibley of Sum 41 accuses his band’s former manager Greig Nori of sexual abuse and grooming.

"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.

Treble Charger frontman Greig Nori is denying he pressured Deryck Whibley into a sexual relationship more than two decades ago — an allegation the Sum 41 singer levelled in his new memoir.