"Subterranean Homesick Blues", by Bob Dylan.
Just as you don't need a weatherman to know which way the wind blows, you don't need an excuse to listen to "Subterranean Homesick Blues". That old rollicking skiffle-beat word-salad never gets tired. But if you happened to be looking for an excuse, you have one: according to this piece by Mr Richard Williams in Ye Olde Guardian, it was 50 years ago today that Dylan committed it to tape. ("Is it rolling, Bob?")
Nor do you need an excuse to watch, for the umpteenth time, its highly influential, oft-parodied "film clip" (actually taken from D A Pennebaker's "Don't Look Back"). "Don't follow leaders."
(You all know that's Allen Ginsburg in the bottom left corner, right?)