In 1988 Bobby McFerrin had a huge hit -- Don't Worry Be Happy. I remember back at that time you couldn't turn on the radio without hearing it. Like most novelty songs, they surge and then fade away never to be heard from again.
Maybe it's time to dust off that 20 year old song and provide people with a little smile in a week in which there is very little to smile about. As you can see in the video it would be timely.
If you were to play it make sure there is a good set up. Stand alone it's just another goofy old song but, with the right set up you might create a memorable moment. Put enough of those moments together and now a station that goes beyond the music. Something that listeners might remember and seek out another time. Something they can't get from Pandora or their iPod.