Led Zeppelin - Houses Of The Holy #4 The Crunge (backward lyrics in red)

This had to be the most difficult back-mask of all! The speed of Plants' vocals is astronomical, forward, let alone backward! It isn't possible to decode this at normal speed. You have to drop down to 1/2 - 1/3 for most of it. It's a true testament to their ingenuity. I did my best!