Apparently, I don't.
I'm making a Naruto FST (for Naruto himself, not just the series), and I have... five happy songs, two of which may not get used and are pretty much only instrumental ("Yo! Pumpkin Head" kind of has lyrics, a little).
If anyone has thoughts on good happy music for Naruto, I'd be ridiculously grateful. In case you're wondering, I have:
Ordinary Day - Great Big Sea
When I'm Up - Great Big Sea
Always Look on the Bright Side of Life - Monty Python
Yo Pumpkin Head - Yoko Kanno (MAYBE)
Popcorn - Hot Butter (MAYBE)