Alt-J performed “In Cold Blood” on Conan. Alvvays shared a new tune, “In Undertow,” off the forthcoming release, Antisocialites, out 9/8. Andrew Belle shared a video for “Down,” a tune off his forthcoming release, Dive Deep, out 8/25. Beach Fossils announced some upcoming tour dates, which include a Chicago show on 10/17 at Bottom Lounge.… Read More weekly recap: twenty three