One rock & roll trope that has fallen by the wayside in recent years is the lead singer verbally throwing it to his lead guitarist in advance of the requisite guitar solo. This is probably in large part because hardly anything is recorded live in the studio anymore, but also because the gold standard has already been achieved in this field, way back in 1974 on Rick Derringer's version of "Rock and Roll, Hoochie Koo," in which he preceded the guitar solo by saying, "Yeah, did somebody say keep on rocking?" Lawdy mama, I believe someone did!
That will certainly never be topped, although we're also quite partial to Ringo Starr, throwing it to George Harrison on the Beatles' "Honey Don't": "Rock on, George, one time for me" - and then following it up, before the next break, with "Rock on, George, for Ringo one time." That was the lofty hurdle Rick Derringer had to clear, but clear it he did.
I'm also partial to the purity Bob Dylan brings to "The Mighty Quinn (Quinn the Eskimo)," the version on his Greatest Hits Volume Two: "Well, that GIT-tar now!" Any other nominees?