TVXQ made a guest appearance on the January 9 edition of SBS radio program 'Cultwo Show.'  On this day, member Yunho revealed that he was close friends with actor Son Ho Joon, who was most recently in 'Reply 1994.'

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Yunho said, "We almost lived together like a family since our high school days . . . We are close to the point that the last digits of our phone numbers are the same . . . When I was young, Son Ho Joon hyung bought me food on numerous occasions.  After debuting as TVXQ in my early twenties, I returned the favor and bought him food a lot.  During his days of anonymity, I fed and raised Son Ho Joon.  He was like my son," making everyone laugh.