I'll try to add to the general happiness level by posting what I consider the happiest song I know, Simon and Garfunkel's "59th Street Bridge Song (Feelin' Groovy)."
Slow down, you move too fast.
You got to make the morning last.
Just kicking down the cobblestones.
Looking for fun and feelin' groovy.
I've come to watch your flowers growing.
Ain't 'cha got no rhymes for me?
Got no deeds to do,
No promises to keep.
I'm dappled and drowsy and ready to sleep.
Let the morning time drop all its petals on me.
Life, I love you,
All is groovy.