When he was in Seoul, he rented a room. However, in order to pay for the room rental, he had work part-time as newspaper delivery boy, part-time sweet seller and even acted as a dead body in movies. There was a time when he hurt his leg when practicing the dances and he could not dance for a year. It had been a very difficult time for him as he had to watch his group members dance and he could not join him.
"Jaejoong was born on 26 January 1986 and he is the lead vocal of the group TVXQ. He won the best looking award in the SM Entertainment auditions and also passed the singing competition. His hobby is weight training and cooking. He sometimes carries out the role of a "big brother" or the "mother" towards the members, and also gives the most criticisms to the members regarding music. He has deep thoughts and talks straight-forwardly, which sometimes gets him into trouble. He enjoys cooking in his spare time and can prepare 15 kinds of dishes easily. Many, including himself, say that he gives a cold impression when first met, however, the members say he is most 'loving' and warm in the group after getting to know him better.
To the shock of the fans, it was revealed in 2006 that Jaejoong was adopted and his real last name was Han. He was raised by adoptive parents as a baby who had not revealed to him that he was adopted. He had no contact with his biological parents to the point where he did not even know of them until his biological mother came forward after his debut as a singer. His biological father was going to sue for custody, against his wishes, but dropped the case after Jaejoong's statement recognizing the man as his father. In a public statement, Jaejoong stated he wanted both his mothers to live happily and take care of him. He will not, however, change his name."
(Source: http://iamkoika.exteen.com/20080416/hero-youngwoong-jae-joong-profile-eng)