Rainbow songs

I'm tired...



To suit my current mood, I have updated every songs in my music play list.
All the usual fast and furious songs are being replaced by some soothing oldies
I've radomly pick a few songs and coincidentally three out of the six songs are all about Rainbows.
From somewhere over the rainbow to I can sing a rainbow to The rainbow connection. Anymore nice songs about rainbow to recommend?
Time to sleep. Good night~