Derek Hough's Shirtless Sexy Body is the Reason Why You Should Dance!

Derek Hough shows off his amazing abs while going shirtless after breaking a sweat at a Dancing with the Stars practice on Friday (April 18) in Hollywood. The 28-year-old dancer is currently training Amy Purdy during this season’s competition. PHOTOS: Check out the latest pics of Derek Hough “My best partner and teacher, I was