The production agency of My Little Hero revealed that Jun.K will be a part of the official soundtrack for the movie. Jun. K will lend his voice to the "Sunshine" track written by the music director, Kim Rae Won. The song will be the main character's song. The movie is about a musical director who participates in a musical where he meets a multicultural child who partners with him. It's a moving, emotional film that follows the pair as they try to follow their dreams. The movie is scheduled to be released in January 2013.  Watch the trailer below: Are you excited to see this when it opens?