Listen to Rock A Bye Baby online. Rock A Bye Baby is an English language song and is sung by Lullaby Land, Baby Lullaby, Monarch Baby Lullaby Institute and Baby Sleep Through the Night. Rock A Bye Baby, from the album Nursery Rhyme Bed Time, was released in the year 2017. The duration of the song is 2:43. Download English songs online from JioSaavn.