Hold on to your seats, TV viewers. <a href=http://www.tellychakkar.com/news/more-drama-unfold-bigg-boss>Bigg Boss 5</a> is all set to witness the guest entry of 601-pound Japanese Sumo Wrestling Champion Yamamotoyama aka Yama on Saturday, 31 December 2011. Given his weight and clocking in at a height of 6'4", Yama is not only the largest Sumo wrestler ever, but he is actually the largest Japanese human ever born.