I used to have one go-to-feel-good song - "Walking on Sunshine" by Katrina and the Waves - that song makes me instantly happy ! I love it! But now I have a 2nd go-to-feel-good song. "Say Hey (I Love You)" by Michael Franti and Spearhead. It just instantly puts me in a good mood - so now I have TWO go-to-feel-good songs.
I also love this video - they look like they are having such a good time - I especially like all the kissing at the end.