Actor Lee Kwang Soo, will attend the wedding of his best friend Song Joong Ki. He will read his heartful letters.

* Wedding ceremony will be held on September 31st, at the Seoul Shilla hotel guesthouse.

* Celebration song will be sung by the best friend of the bride Song Hye Kyo, singer Ok Joo Hyun.

* The team members of TV Series "descendants of the sun" are also invited.