“Babe I’m Gonna Leave You” illustrates the breakdown of a relationship over a mellow backing track. It was originally written by folk singer Anne Bredon and recorded by Joan Baez, of whom both guitarist Jimmy Page and vocalist Robert Plant were fans. At first, the band didn’t know the song’s origin, crediting it as a traditional song until 1990.

The song was famously used in an episode of One Tree Hill, as well as an episode of The Sopranos.