The two singers took part in the 1st OST accompanying their variety show 'I Am A Movie Director Too'. In the teaser, not only do Eddy Kim and Subin make appearances, but also other cast members such as Super Junior-M's Henry, Girl's Day's Sojin, MBLAQ's Mir, and Hello Venus's Nara. 

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Listen to a part of the 1st OST "Dream" in the newest teaser above!