DWTS All-Stars Season 15: Derek Hough and Shawn Johnson Talk About Week 4 (VIDEO) Tweet October 11, 2012 at 02:18PM EDT by Molly Friedman Related: Dancing With The Stars, Derek Hough , All-Stars , Shawn Johnson , Season 15 Episode 7 Credit: OTRC Shawn and Derek talk about Week 4. For more news about Dancing With the Stars, Like us on Facebook and Follow us on Twitter.