This week’s reissue of Led Zeppelin‘s sixth album, Physical Graffiti, contains something that their previous album, Houses of the Holy, did not — the song “Houses of the Holy.”

Jimmy Page, who’s overseeing the the re-release of the band’s studio catalog, tells us the reason they did that back then was simple: “Because we could. In the days when there wasn’t an Internet frenzy, you could do things like that.”

In 1976, when they released their next album, Presence, fans thought it might include a song called “Physical Graffiti,” but they never did record a track with that title.