Dirty Projectors are currently touring in support of their excellent new album Swing Lo Magellan, and with them they've got a tour-only 7", "Buckle Up", available in a limited edition of 1,000. Check out the A-side above. The single will be available as a tour giveaway and will not be for sale. For each show, an hour before doors, Dirty Projectors will Tweet a password, and the first fans to bring the password to the merch table will get a copy. Watch the trailer for David Longstreth's Pitchfork.tv-produced film Hi Custodian, coming soon, here.