A researcher identified the man on the cover of Led Zeppelin IV, 50 years after the album’s release. The man was a thatcher named Lot Long, and the album cover is based on a found photograph from the Victorian era. The photographer was named Ernest Farmer, now the subject of an English museum exhibition. Long lived 1823-1893. Researcher Brian Edwards, who discovered the photo, has been listening to the album since it came out more than 50 years ago.

In the movie “Fast Times at Ridgemont High,” a character recommends a specific track from Led Zeppelin IV as make-out music, but when the big make-out scene comes around, the music on the soundtrack is Kashmir, from another Zeppelin album.