A couple of centuries before the Crash Test Dummies, there was Emanuel Schikaneder, who wrote “Hm! Hm! Hm! Hm!” for Papageno in Mozart’s “Magic Flute”.
Thomas Morley. Commonly referred to as one of the greatest composers of his time, whose works were, for the most part, vastly improved by removing the words.
Simon & Garfunkel had some good ones, IIRC. In “The Only Living Boy in New York,” there’s: “Da-n-da-da-n-da-n-da-da and here I am.”
In “Mrs. Robinson,” don’t they “Do-do-do-do-do-do-do, da-da-da-da-da” through one whole verse?
Bom ba ba bom ba bom ba bom bom ba ba bom ba ba bom ba ba dang a dang dang
Ba ba ding a dong ding Blue moon moon blue moon dip di dip di dip
Moo Moo Moo Blue moon dip di dip di dip Moo Moo Moo Blue moon dip di dip di dip
Bom ba ba bom ba bom ba bom bom ba ba bom ba ba bom ba ba dang a dang dang
Ba ba ding a dong ding
I once counted the number of "Yeah"s on the album Second Coming but Stone Roses. At least 70 IIRC. (I think the exact number is 73.) They sing “yeah yeah yeah” on nearly every song on that album it seems.
gibby glop glooby (last word of song title sung in background)
nibby nobby newby la la la lo lo
sabba sibby sabba newby ahba nahba ni ni no no
dooby ooby wanna dooby amma namma (then real lyrics)