Listen to Secret on ( S.O. ) [feat. Lux] online. Secret on ( S.O. ) [feat. Lux] is an English language song and is sung by Marj and Loraine. Secret on ( S.O. ) [feat. Lux], from the album Breezy Music Vol. 1, was released in the year 2015. The duration of the song is 3:46. Download English songs online from JioSaavn.