Led Zeppelin I was released three months before recording began for Ummagumma.

But they don't sound a damn thing like one another if you ask me.

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what do you teach your children about me?
what do you teach your little children about me?
pimp, thug, bling drug lord of the undergrounded kings
how can you be so sure i won't call down the rain?
what do you teach your little children about me?
you point your gun, wait, hide and run. i see it plain