[Helms]

You could well imagine what Elvis saw in his rear view mirror when Zeppelin, the Stones and these others appeared on his rear bumper. Sadly and like M. Jackson, some do not realize how short lived their time on the stage is. Zep had 11 years, and Elvis and Jackson had a good run also, but all this must pass ( RIP-George Harrison).

[Mr. Mojo]

By the time Zep was on the scene, Elvis' glory years were LONG over. At that point, even his (bad) surf movie days were over.

Bob Dylan has been touring pretty much non-stop for over 40 years, and the Stones are pretty close.

but all this must pass (RIP-George Harrison).

RIP indeed. ...And a bump to Harrison's 1970 classic All Things Must Pass, one of the best albums in the history of the genre.