Helladdict’s new single, “Sudden Death,” doesn’t feel like a tribute; it feels like an exhumation. Here are six men from Santiago, all seasoned enough to know that pure fury is a young person’s game, offering instead the far more corrosive anger of experience. They resurrect the chassis of 80s thrash, all bone-raw intensity and punishing tempo, but the engine is modern, built with the...

South Wales four-piece The Now capture that sudden, dizzying jolt of romantic whiplash on their new single, "Did You Miss Me?" Running into a former flame across a crowded room is usually an exercise in awkward self-preservation. Here, though, the unresolved tension and mutual spark get funneled straight into bright, kinetic indie pop. Rather than agonizing over what broke, the track embraces that chaotic,...