The Kills are a BTA favourite, not least because they're equal parts British (guitarist Jamie Hince) and American (vocalist Alison Mosshart). According to Wikipedia (which is never, ever wrong):
"The duo first met when Mosshart heard Hince practicing in the hotel room above hers, and when their former groups disbanded they struck up a songwriting partnership. For months, the pair air mailed work tapes across the Atlantic; this proved to test the patience of both artists as it took days or weeks to get each others tapes, so Mosshart upped sticks from her Florida home and flew to London."
Sweet story. Anyway, the pair released their third album Midnight Boom on March 10th to rave reviews from just about everyone and it quickly hit the number one spot on the UK Indie chart. You can stream some tracks from the new album and find out more about the band here. The Kills are currently on a gigantic international tour.
The Kills - URA Fever
The Kills - Cheap and Cheerful