My advice? Huey Lewis and The News. Greatest Hits. I am actually wringing major smiles out of a rather blue day, but mostly because Mr. Lewis is coaxing them out with his stellar arrangement and insanely amazing melodies/hooks and that VOICE!
Take two uptempo songs and call me in the morning.
If this is an emergency, play "Happy to be Stuck With You" on repeat or listen carefully for the prodigious cowbell on "Heart and Soul". Cowbell heals many ailments.
That is all.