Babe, baby, baby, I'm gonna leave you. I said baby, you know I'm gonna leave you. I'll leave you when the summertime, Leave you when the summer comes a-rollin' Leave you when the summer comes along. Baby, baby, I don't wanna leave you, I ain't jokin' woman, I got to ramble. Oh, yeah, baby, baby, I believin', We really got to ramble. I can hear it callin' me the way it used to, I can hear it callin' me back home! Babe...I'm gonna leave you Oh, baby, you know, I've really got to leave you Oh I can hear it callin' me I said, don't you hear it callin' me the way it used to? Ohhh I know, I know I know I never never never gonna leave you babe But I got to go away from this place, I've got to quit you, yeah Ooh, baby... Baby, ooh, don't you hear it callin' me? Woman, woman, I know, I know It feels good to have you back again And I know that one day baby, It's really gonna grow, yes it is. We gonna go walkin' through the park every day. Come what may, every day Oooh, mama baby I'm gonna leave you--go away It was really, really good. You made me happy every single day. But now! I've got to go away! Baby, baby, baby, baby That's when it's callin' me I said, that's when it's callin' me back home...
This song is a Folk standard. Led Zeppelin thought it was a traditional song, meaning no one could claim they wrote it, but later found out it was written by a Folk singer named Anne Bredon (nee Briggs). She was a very influential singer, but stopped recording in 1971 at age 27, and has not recorded since. She was not credited for this until 1990, when her son brought it to the attention of the band.
Jimmy Page got the idea to cover this after hearing Joan Beaz' Folk version. He and Plant were both fans of Baez.
This was also recorded by Marianne Faithfull. Jimmy Page played on her version when he was a session musician.
At the 1:43 mark, you can hear a recording of Plant saying, "I can hear it calling me" just before he sings the line - as if he "hears it calling him."
Led Zeppelin only played this live on their 1969 tour, but Jimmy Page and Robert Plant brought it back for their 1998 tour in a 9-minute version.