American electropop duo Sylvan Esso have announced their new album, Ow ∞, to be released September 11. Ow ∞ comes as their first new album in four years and, according to the artists, marks the longest the band has ever spent writing a record. Alongside the announcement, the band released a single off the album, 'Concrete Glen.' Consisting of Amelia Meath and Nick Sanborn, Sylvan Esso made their debut with single ‘Hey Mami’ in July of 2013 and subsequently released their self-titled debut album in May, 2014. Following Ow ∞’s release, Sylvan Esso will tour North America, spanning more than two dozen shows in 2026 and 2027.