The Strokes also revealed during the event, which was attended by Alexandria Ocasio-Cortez, Sunflower Bean, Dr. Cornel West, and Cynthia Nixon, that they also have a new album on the way.
Casablancas isn't one of rock's chattier frontpeople, but he ended the New Hampshire performance with a massive scoop.
The New Abnormal was helmed by famed producer Rick Rubin, and it will be the band's first LP since 2013.
Along with the song The Strokes released an animated clip, filmed by Mike Burakoff (who has previously worked with MGMT). According to teaser artwork it has the title The New Abnormal.
Prior to the band playing Casablancas gave high praise to Sanders, stating, "As the only truly non-corporate candidate, Bernie Sanders represents our only chance to overthrow corporate power and help return America to democracy". "This is why we support him".