The Bong Remains The Same: Led Zeppelin Meet Dread Zeppelin (Almost)

"After half an hour Elvis' bodyguards motioned that it was time to go. As they were leaving Robert gushed, 'Elvis, you're my idol. Thanks for letting us come.' The King responded by singing the beginning of 'Treat Me Like A Fool'. Robert sang the second line: 'Treat me mean and cruel'. Together Elvis and Robert Plant sang the last line: 'But love me'. For Led Zeppelin the best part of the visit had been when Elvis asked for their autographs. He said they were for his daughter, Lisa Marie."
(From Stephen Davis' Hammer Of The Gods)