Here's what I put in the Information Section:
As we get older, our feelings toward each accumulated birthday get more complicated. And often, I'm more excited about celebrating friends' birthdays than my friends are... Thus, my inspiration for this song.
The lyrics are my own. The tune is "Vive la Compagnie" (or:"Vive l'Amour"). This song dates from at least the mid-nineteenth century, and has also become one of the more popular (in variant forms) Scouting songs.
A discussion thread on the song's history and roots can be found on the Mudcat forums, here: http://mudcat.org/thread.cfm?threadid=8
( lyrics )