Actress Shin Se Kyung has revealed that she will be singing an OST track for her upcoming movie, 'Blue Salt'. Shin Se Kyung has been highly immersed in her role for the movie over the past year, so she's naturally developed a lot of the affection for the drama.  She personally mentioned that she'd love to participate in the OST for it as well, and directors agreed that she'd be best fit for the song's ending track, "Blue Summer Day". The song was composed by indie group 3rd Coast and written by director Lee Hyun Seung. Many staff members were of the opinion that Shin Se Kyung's clear voice truly brought out the meaning in the song. "Blue Summer Day" will be released as a digital single in the future. The movie hits theaters during the Chuseok holidays next month. Source + Photos: Sports Chosun via Naver