Listen to Rock A Bye Baby online. Rock A Bye Baby is an English language song and is sung by Bedtime Baby, Einstein Baby Lullaby Academy, Nursery Rhymes and Rockabye Lullaby. Rock A Bye Baby, from the album Nursery Rhymes Sung By Jane, was released in the year 2017. The duration of the song is 2:43. Download English songs online from JioSaavn.