This new single is a three-minute distillation of exactly what the Frattellis are about, with lots of hand-claps, a manic sing-along chorus and, of course, driving drums behind buzz-saw guitars. ‘Chelsea Dagger’ is the perfect tune to get the masses warmed up for their debut, out next month. Sure, it’s shambolic in places. But these boys sure know how to bring it all back together to create an all-singing, all-stamping wig out.