Listen to Sweet Lullaby online. Sweet Lullaby is an Unknown language song and is sung by Soundtrack and Theme Orchestra. Sweet Lullaby, from the album Piano Tribute to Fifty Shades of Grey: Sex and Zen Essential Piano, Romantic Background Music, Solo Piano for Reading and Relax, Piano Music for 50 Emotions and More, was released in the year 2014. The duration of the song is 2:59. Download Unknown songs online from JioSaavn.