Elvis concert references of Glen by Mike Morgan
A long-time fan, Mike Morgan, provided http://www.GlenCampbellForums.com
with a web link to audio material he had researched and added to his Glen collection over many years: Elvis's mentions of Glen Campbell during concerts held in many different cities during his career as well as Elvis's impersonations of Glen! That's right: Elvis impersonating Glen!
According to Mike, the concert references of Glen were from soundboard and audience recordings. He asked me to share his research which was posted to a friend's Elvis website because Mike felt that members and readers here will really enjoy these sound clips. Oh, yes, we are enjoying these many references to Glen by Elvis, thank you, MikeM!
I found that when clicking on "play", the audio clips downloaded to my computer and then I was able to listen to the clips with a media player (VLC on my computer).
(Note that there are multiple pages of audio clips.)