The question was:
QUICK: NAME THE GREATEST COVER SONG IN POPULAR MUSIC HISTORY.
(Spoiler alert: objectively, it was probably done by Fairport Convention)
— Jeff B., now with 50% more annoyingness (@EsotericCD) January 25, 2016
And these were my two immediate answers.
I’m open to other opinions on this one, though. The Zevon one in particular may simply be hardcore bittersweet nostalgia on my part; Warren Zevon was one of the defining voices of my early adulthood. I still miss him.