Later this month, Led Zeppelin will release deluxe, remastered editions of Led Zeppelin IV and Houses of the Holy.
Each reissue will contain a second disc featuring previously unreleased alternate mixes, in-progress versions of songs and more.
Led Zeppelin IV includes an alternate mix of "Rock and Roll." The track, which features a different blend of guitars, can be heard below.
"'Rock and Roll' has just got that cheeky energy about it," Jimmy Page told Rolling Stone. "It's a party. 'It's been a long time since I rock and rolled.' It says it all, really. It's great lyrics and it's a great performance."
"As a song, it was actually kind of punky; pre-punk," John Paul Jones added. "It was really fast too, onstage anyway. It just got really quick, a lot of energy. It's a lot of fun to play. The crowd loved it. We loved it."
The deluxe editions of Led Zeppelin IV and Houses of the Holy will be released October 28.