Listen to Number 4 Song online. Number 4 Song is an English language song and is sung by Little Baby Bum Nursery Rhyme Friends. Number 4 Song, from the album Nursery Rhymes & Children's Songs, Vol. 4 (Sing & Learn with LittleBabyBum), was released in the year 2021. The duration of the song is 1:30. Download English songs online from JioSaavn.