Hat Fitz & Cara Robinson, whom (grammer) I have mentioned before, at the Half Moon in Putney.
Hat Fitz is an impressively-bearded Australian with a couple of beat-up guitars and, obv, a hat. Cara Robinson is a non-bearded Irishwoman who pkays drums, washboard, fife, cowbells and penny whistle, frequently at the same time. They both sing. If I said Seasick Steve meets The White Stripes I'd be wrong, but not totally (only Cara is a much better drummer than Meg White). In the words of Theresa, who borrowed my lighter at the interval, "Awesome! Like, totally awesome!". She is USAnian.