Led Zeppelin II #7 Ramble On (backward lyrics in red)

2:40 Another Paul reference:"Oh I wish tonight I'm still so happy that, bury deep by thousands. Paul, I give her some marks, and asked it. But it was the last no attack"

3:17 Another one of many backward references throughout the discography "We did not find this out. Out for a nettle. I asked for a slow backmask in my song"