On February 13th, they will be releasing their digital single ‘Don’t Say No’. The song, which was written by Yoon Gun, was supported by the sounds of the guitar along with a stringed quartet, as well as the lovely melodies of the piano, going for an unplugged pop genre. The song is a about two people confessing their love for one another and with the romantic vocal harmonies of Seohyun and Yoon Gun, the song created an emotional atmosphere.
Before the news of their duet was officially released, the two singers hinted the collaboration with the each other through social networking sites such as Yoon Gun’s Twitter and SMTown’s Facebook page, gathering the attention of many fans.