From Stockholm, Sweden

From last.fm:

There are three bands called First Aid Kit: 1. Swedish indie/folk duo consisting of the young sisters Klara and Johanna Söderberg from Stockholm. The Emmylou Songfacts says that the teenage siblings began composing songs in 2007, taking their name at random from an English dictionary. The debut EP "Drunken Trees" was released on the 9th of April 2008 in Sweden on the label Rabid Records, owned by the Swedish electronic duo The Knife. The EP was re-released through Wichita Recordings early 2009. Read more about First Aid Kit on Last.fm.