This was the song sung during "Isabella and the Temple of Sap". It appears to be both their anthem and the encouragement-song.
All: We're Fireside Girls, one and all
And together we belong.
We wear our patches upon our sashes,
And stand cute, small, and strong.
This is the Fireside Girls song...
And it's not too terribly long!
- During the line "we wear our patches upon our sashes", Isabella is shown with an "I Just Saw A Cute Boy" patch, most likely referring to Phineas.