"I Had a Dream That You Were Mine is a collaborative studio album by Hamilton Leithauser, the former frontman of The Walkmen, and Rostam Batmanglij, the former multi-instrumentalist and producer of Vampire Weekend. It was released on September 23, 2016 on Glassnote Records, and preceded by the singles "A 1000 Times", "In a Black Out" and "When the Truth Is...""