Personally, I don't believe in karma, but it is a popular notion. Indeed, it shows up in songs about reaping what you sow, and getting what you give. Can you think of an example? You may hear your request after 9am, if you're deserving of it.
Here's what we played:
Patty Griffin "Time Will Do the Talking"
Pet Shop Boys "What Have I Done to Deserve This"
John Lennon "Instant Karma! (We All Shine On)"
New Radicals "You Get What You Give"