Why She's Sexy: Four words: 'Dancing With the Stars.' Kellie Pickler might have made this list of the sexiest female artists of 2013 before her revealing performances on the hit ABC show, but outfits like the one pictured sealed the deal. One of the show's biggest mysteries is how a couple like Pickler and Derek Hough can hold each other close for over three months and then come away saying they're like brother and sister. The sensuality she showed adds one more layer to an already intriguing cake. Pickler may win the best abs in country music award, as well.