Dave Matthews has sold 17 million concert tickets. Seventeen million people. That’s about 1/10th the amount of people who voted in the 2008 presidential election. Therefore, in theory, Dave Matthews is a giant swing vote. If that doesn’t scare you, imagine this: Dave Matthews will be touring in the year of another presidential election, warping your brains, tryin’ ta make you think different. And do you want that? No. You don’t.