An unfinished memoir that Prince was writing before his 2016 death will be released in October, with previously unseen photos and other material rounding out the book, the publisher Penguin Random House said on Monday.

The Grammy Award-winning artist, known for his androgynous style and sexually-charged songs, announced in March 2016 at a New York City club that he was working on a memoir.

Prince held that news conference and brief concert about a month before he died at age 57 of an accidental overdose of the opioid fentanyl.

Part of Prince’s forthcoming book, titled “The Beautiful Ones,” is “the exquisite memoir he began writing before his tragic death,” with that unfinished section devoted to his childhood, Penguin Random House said on a web page for the project.

“We’re honored to be publishing Prince’s unfinished memoir, THE BEAUTIFUL ONES, on October 29, 2019,” Random House said in a message on Twitter on Monday.

The book will also contain photos, scrapbooks, and lyric sheets and his original handwritten treatment for the 1984 film “Purple Rain,” a quasi-biographical blockbuster that turned Prince into a superstar.