Greg Mankiw's 10 principles of economics, The Rap Version :

What can I say, just Awesome. I don't know about #7, but WTF. For anyone feeling really bored, here's the original version:

1. People face tradeoffs
2. The cost of something is what you give up to get it
3. Rational people think at the margin
4. People respond to incentives
5. Trade can make everyone better off
6. Markets are usually a good way to organize economic activity
7. Governments can sometimes improve market outcomes
8. A country’s standard of living depends on its ability to produce goods and services
9. Prices rise when the government prints too much money
10. Society faces a short-run tradeoff between inflation and unemployment.