The Walkmen's Hamilton Leithauser and Vampire Weekend's Rostam Batmanglij have a new collaborative project, simply titled Hamilton Leithauser + Rostam. Their debut single, "A 1000 Times," is out now and you can stream it below.

Rostam co-produced and played on much of Hamilton's 2014 solo album, and Hamilton joined Rostam during his opening set for Brian Wilson during Northside.