South Korean celebrity Cha Hyun-seung, 34, has shared heartbreaking news as he reveals that he is battling leukemia. Known for his athletic build and charismatic performances, the dancer rose to fame through Netflix reality hits Single’s Inferno and Physical: 100, and is well known to be the former backup dancer for K-pop star Sunmi. Cha Hyun-seung posted photos on Instagram on September 27 showing himself in a hospital gown with his head shaved. In the caption, he recounted how, in early J...