For several months now, I've been seeing celebrities wearing one shoulder desings. When I saw Reese Witherspoon's dress at the CMA's this past week, my curiousty got the better of me and I went on a search for similar styles. While it doesn't appear that this trend has hit pattern books yet, I predict that by next spring, you'll be seeing lots more of this look. In the mean time, there's a few great designs that will tide you over: McCall 5658, Butterick 4343, Kwik Sew 3574, and Burda 8321.