The ampersand?
Yep.
Back in the 1800s, kids would sing "x y z and per se and (&)". Per se meaning "and on its own". Later, it was dropped for the alphabet, but it came to be known from its mondegreen, ampersand.

According to all known laws of aviation, there is no way a bee should be able to fly.
Its wings are too small to get its fat little body off the ground.
The bee, of course, flies anyway because bees don't care what humans think is impossible.
Yellow, black. Yellow, black.
Yellow, black. Yellow, black.