'Dancing With The Stars': 13 Celebrities Who Have Lost Weight Competing

While all that practice certainly comes in handy when it's time to perform the next foxtrot or rumba or waltz , all that training has also helped a number of stars off of the dance floor . Viewers have witnessed some astounding transformations over the past 13 seasons (and during this one, too!) as celebrities have toned and trimmed their way to healthier weights.