Listen to Rock-a-Bye-Baby online. Rock-a-Bye-Baby is an Instrumental language song and is sung by BabySleepDreams, Easy Sleep Music and Baby Music Therapy. Rock-a-Bye-Baby, from the album Classical Music for Babies: Soothing Lullaby Music for Baby and Toddler Sleep, was released in the year 2019. The duration of the song is 3:02. Download Instrumental songs online from JioSaavn.