| This is very similar to a Blues song by Howlin' Wolf called "Killing Floor." It was so similar, Wolf was eventually given a composer credit. |
| Some lyrics are from Blues singer Robert Johnson's "Traveling Riverside Blues." |
| No electronic devices were used to create the echo on Robert Plant's vocal. It was made by the acoustics in the studio and by his voice. |
| This contains a lot of sexual references ("squeeze my lemon"). Some people were offended, but Zeppelin's fans didn't have a problem with it. |
| Led Zeppelin recorded this in Los Angeles when they were on their second tour of America. |
| Plant often made up lyrics when he sang this live, usually making them even more sexually suggestive. |
