I’m not quite sure what Listen Campaign is, but I do know that there was an OST digitally released for it on September 24. Five artists have contributed to it, including Horan (of Clazziquai, Ibadi) and Lucite Tokki. The former does not cover BoA, in spite of singing a song called Listen To My Heart. Neither does the latter with 두근두근. Tracklist available at No Music, No Life