On February 15th, TVXQ's Yunho moved viewers on SBS's "Strong Heart" by revealing the story behind  his characteristic 'thumbs-up pose'. He stated, "When I first came up from Gwangju, my father and grandfather disapproved of my trainee life severely. At one point, I lost all support from my home and was forced to sleep homeless at a subway station in Seoul." Yunho continued, "Right before I debuted, my grandfather passed away. I heard that his condition was bad while we were recording for our debut album, so I went back down to my hometown. My grandfather, who was always known to be quiet, gave me a thumbs up. That was the last image I have of him." "For three days, I cried night and day. And then I became determined - I will rise to the top one day and keep my promise to my grandfather. Only then would I let go all of the tears I held up inside of me.  If you look closely, I have a lot of pictures of me with the thumbs up pose, and it's because I never want to forget the promise I made with my grandfather." He concluded, "I hope to receive a lot of good awards at the year's end, and cry to my heart's content." Source: Sports Today,