Is it true that all the songs by Led Zeppelin are about Lord of the Rings?!

Question: Is it true that all the songs by Led Zeppelin are about Lord of the Rings!?
Answers:

Wasen't it only the fourth album which contained references!?Www@Enter-QA@Com

I would say some of their songs are but most are not!.Www@Enter-QA@Com

The answer content post by the user, if contains the copyright content please contact us, we will immediately remove it.