It's a Schoolhouse Rock kinda day.
Here's my absolute favorite (one of the new ones from the 90s revival, shockingly), The Tale of Mr. Morton:
Here's one I remember seeing as a kid that I don't think they ever re-ran during the revival (c'mon, who'd object to a song about Manifest Destiny? Oh, wait...), Elbow Room:
Interplanet Janet is now inaccurate thanks to the de-planetizing of Pluto (thanks a lot, international astronomical community... way to think of the children!), but I still like it:
My last one for today is an obvious choice, but come on, we all love it: