DWTS All-Stars Week 4: Derek Hough and Shawn Johnson's Sassy Mambo Dance (VIDEO) Tweet October 15, 2012 at 09:53PM EDT by Wetpaint Entertainment Staff Related: Dancing With The Stars, Derek Hough , Shawn Johnson , Season 15 Episode 7 Credit: YouTube Shawn and Derek's sassy mambo. For more news about Dancing With the Stars, Like us on Facebook and Follow us on Twitter.
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