Bob Dylan fronting the Beatles? It sounds too good to be true.

Music fans got exciting news in 1969 when Rolling Stone reviewed the first album by the Masked Marauders, a super-group featuring Bob Dylan, Mick Jagger, John Lennon, and Paul McCartney. Due to legal issues with their respective labels, the stars’ names wouldn’t appear on the album cover, but the review extolled the virtues of Dylan’s new “deep bass voice” and the record’s 18-minute cover songs. One of the album’s highlights was an extended jam between bass guitar and piano, with Paul McCartney playing both parts! The writer earnestly concluded, “It can truly be said that this album is more than a way of life; it is life.”

For anyone paying attention, the absurd details added up to a clear hoax. The man behind the gag, editor Greil Marcus, was fed up with the supergroup trend and figured that if he peppered his piece with enough fabrication, readers would pick up on the joke.

They didn’t. After reading the review, fans were desperate to get their hands on the Masked Marauders album. Rather than fess up, Marcus dug in his heels and took his prank to the next level. He recruited an obscure San Francisco band to record a spoof album, then scored a distribution deal with Warner Bros. After a little radio promotion, the Masked Marauders’ self-titled debut sold 100,000 copies. For its part, Warner Bros. decided to let fans in on the joke after they bought the album. Each sleeve included the Rolling Stone review along with liner notes that read, “In a world of sham, the Masked Marauders, bless their hearts, are the genuine article.”

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