Since Birdhouse in your soul has already been covered...

I also like Whistling in the Dark..

Currently Happy Songs:

Mele Kalikimaka
You and I - Ingrid Michaelson
You Can't STop the Beat from Hairspray
Dancing Queen -and Happy Hawaii - ABBA
I LOVE Ben FOlds, he's my fave... but I'm not sure which ONE is my fave. Currently I have a lot of fun listening to his song EFFINGTON.
Single LAdies (even though I'm not) by Beyonce
Gonna Be - Proclaimers
Little Willy - sweet
Lookin' Out my Backdoor - CCR
Sister Kate - Ditty Bops

There are a bunch of other songs that I like. That's just a short list. I've probably forgotten some.