Jann Wenner

Rolling Stone publisher Jann Wenner speaks onstage during the 28th Annual Rock and Roll Hall of Fame Induction Ceremony at Nokia Theatre L.A. 

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Rolling Stone publisher Jann Wenner, the enfant terrible who started the counter-culture journal in 1967, will get the full-on biography treatment.

Joe Hagan, a contributing editor for New York magazine, has sold the proposed book to Knopf for a “seven-figure” sum, a spokesman for the publishing company announced today.

Hagan will have complete access to Wenner’s archives to research and write the book, which will be released in 2017 in conjunction with Rolling Stone’s 50th anniversary.

Despite Wenner’s cooperation, Hagan said he planned to write an “independent” work. “As a journalist, I’m thrilled to be able to report on his life in full, a life that doubles as a history of the last 50 years in America,” he explained in an email to The New York Times.

The deal was first reported by Crain’s New York Business.

Wenner, who dropped out of the University of California, Berkeley, in 1967 to found the magazine, has been a mythic figure in the magazine industry and music business for decades. “It’s a seven-figure payday for a seven-figure subject and story,” said Knopf spokesman Paul Bogaards.

This story originally appeared on THR.com.