Annie Clark (St. Vincent): Justin (Bon Iver) and I met at Bonnaroo, and it turns out we were both fans of each other. Afterward, we got to talking about doing some kind of collaboration. He had this song that he'd been kicking around, and he sent it to me. It was beautiful, as you can imagine. I ended up working on it with him, and then it turned out that the Twilight people were interested in the song being on their soundtrack.