This song is about doing drugs. Asked by Ink 19 if anyone has a drug problem, the band's drummer Morgan Rose said, "I don't think any of us had any real problems. We just dabbled a little bit. So that's written about that."
Rose said this was going to be called "Venetian Blinds" as a joke because according to him, "anybody that does a little too much coke, or speed, knows that you spend the majority of the night sitting in the room looking out the blinds."
"Cleveland Rocks" was written by an Englishman. Ian Hunter wrote the song after touring America in the late '70s and finding that Cleveland was by far the most receptive city to his brand of Glam Rock.
"Whole Lotta Love" was Led Zeppelin's only US Top 10 hit, charting at #4. Many of their songs, including "Stairway To Heaven," were not released as singles, as it was considered bad form in England to make people pay for singles that were on albums.