I'm talking opening to a series, cartoon show, anything of the sort. I have Avatar: The Last Airbender opening 'Water, earth, fire, air...' in my head right now, but it can also be like a theme song. Something short and catchy. Both existing and imaginary (as in, your own, all of it is imaginary) shows allowed.

Friendship, family, romance... Any type of a relationship between two people who are very different in any way or who for any other reason would unlikely be in a such relationship. <3 Prose, poetry, whatever...