This is the guy who got me into listening to the blues ... the one and only Elmore James. Weren't no BB King, werent no Jimmy Reed, weren't no Sonny Boy - it was the King of the Slide guitar
"Do you remember mama? When I knocked upon your door? You had the nerve to tell me, you dont want me no more! "
I've heard that in another song somewhere before lol.
There are a few articles written now in regards to Zep ripping off tunes from the old greats, almost word for word, chord for chord, they got away with it...