I saw Austra open for Cold Cave the other day and, as it happens once in a blue moon, was delightfully surprised by an opening band of whom I had never heard before. The band consists of a young woman doing vocals, two backup singers, a guitarist, keyboardist and live drummer.
Austra, sans third vocalist and drummer
The three on vox appear to have been raised on a steady diet of Stevie Nicks and the Cocteau Twins: ethereal vocals and ghostly dance steps abound. They were overtly (almost pretentiously) strange, but the endearing sultriness of the act won me over. The enthusiasm of their fans -- they danced! At a show in New York! -- was delightful as well. They're playing live again soon, and I intend to catch them. Someone quite fortunately took footage of the show I attended, so here are Austra performing "Young and Gay":
...and for better sound quality, here is their video for their single and crowd-please "Lose It":