All I am saying is that "The Zoo Song" is A LOT more well known than "The Last Thing."
Proof, GUEST, Tunesmith, Proof? Just your opinion: different from mine: you are getting into elder abuse now with your comments re over-60s! Lay off!
I took my grandchildren (ages 6 and 3) to the Zoo just 2 days ago: they don't they know that song: not taught in their school or nursery AFAIK. Grannie can sing it to them, but they prefer "Wheels on the Bus" and "Coorie Doon".
Final answer: I'll say no more, as it's getting just a wee bit ridiculous!