56 Years Ago, a Metal Classic Was Written as a Last-Minute Filler

In a perfect lightning strike, Black Sabbath's "Paranoid" came quickly, precisely, and made a huge impact when it hit the ground, helping to shape the emerging metal genre.

With the 1970 single eventually becoming the iconic Birmingham-based band's signature song, it is all the more impressive that the track, clocking in at under three minutes, was an afterthought for a virtually completed album, which would eventually be named in its honor.

In an interview with Guitar Worldin 2004, bassist Geezer Butler said that the song, written in just minutes in a single sitting and co-written by all four original members, came together so quickly in its composition and recording that their lead singer, the late Ozzy Osbourne, had to read the scribbled-down lyrics during its final recording.

"We recorded the whole [album] in about two or three days, live in the studio. The song ‘Paranoid' was written as an afterthought," Butler recalled. Perhaps even more impressive than its immediacy, however, was that the band was only prompted to create it to keep the album at a standard length. "We basically needed a three-minute filler for the album, and Tony came up with the riff," the bassist continued. "I quickly did the lyrics, and Ozzy was reading them as he was singing."

"It was about 1:30 in the afternoon and Tony [Iommi, Guitarist] had the riffs," drummer Bill Ward added. "By 2:00 we had ‘Paranoid' exactly as you hear it on the record."

While a modest chart success, "Paranoid" and its transformative blues-inspired sound, along with its galloping guitar and uninhibited energy, helped to not only define how metal should sound, but also ensure it was the future of the still-young rock genre. The song, which peaked at #61 on the Billboard Hot 100, would later be ranked by Rolling Stone at #250 and #13 on its Greatest Songs of All Time and Greatest Heavy Metal Songs of All Time lists. However, Osbourne initially doubted its appeal during the recording process, concerned it was too derivative of the sound of their music heroes, Led Zeppelin.

"We always loved Zeppelin in them days, sitting round on the floor smoking dope and listening to that first album," Butler told Guitar World. "So when Tony came up with the riff to ‘Paranoid' me and Ozzy spotted it immediately and went: ‘Naw, we can't do that!'

"In fact we ended up having quite a big argument about it. Guess who was wrong? "

This story was originally published by Men's Journal on Jun 27, 2026, where it first appeared in the News section. Add Men's Journal as a Preferred Source by clicking here.

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This story was originally published June 27, 2026 at 12:00 PM.