I'm going to second Tim Fernholz skepticism of using artists--and art, for that matter--as a way to influence elections. Vote or Die was a joke from jump, mostly because the people involved, while interested in the cause, overestimated their power. Frankly, I don't think people listen to music to figure out which way to vote. Nor should they. Music is influential, but not in the easy mathematical way (if you listen to this, you'll do this) that a lot of us want it to be.
An artist's campaign to end sexual harassment on the streets of NYC.