Listen to Blue Sky online. Blue Sky is an Unknown language song and is sung by Exam Study Music Chillout. Blue Sky, from the album Exam Study Music Chillout: Chill Music and Music for Studying to Improve Memory and Study Skills, for Brain Training, Concentration, Reading, Working Memory and to Reduce Stress, was released in the year 2011. The duration of the song is 3:54. Download Unknown songs online from JioSaavn.