Not just a song that can be found in the archives, but one that almost everyone can hum, even today.
(Somebody asked what was meant by "today's...." Throw whatever you want out, somebody tossed out "Love me tender" as being a tune from in the 1860s.)
Bored music teacher in 2200: "and here children, we find the most important contributions to late 20th centure music: a phonograph of Depeche Mode's Violator."