American multi-instrumentalist and singer songwriter St. Vincent (real name Annie Clark) told MTV News about this collaboration with Justin Vernon, the main man from indie folk band Bon Iver: "He sings in his beautiful falsetto and I'm actually singing very, very low. I think there's something vampirey and creepy about the two of us singing together. It's a simple, stripped-down kind of song. It's really elegant and beautiful."
Clark and Vernon had been talking about collaborating together for a while, and when Vernon wrote this song neither of them had any idea that this tune would end up on the soundtrack of the Twilight movie, New Moon. She explained: "We recorded the song for the joy of it, and then it looked like Twilight people were interested in using the song for the movie. So it pretty naturally happened."
Justin Vernon is a big fan of the 1990s TV drama Northern Exposure, which is about a New York doctor adjusting to life in a remote Alaskan community. This song was named after the Washington town where the series was filmed.
Dido helped shut down a Neo-Nazi Web site after learning it was using "White Flag" to promote its hateful messages. Owners of the site had misinterpreted the track as racist and thought they represented their white supremacy views.