Listen to Hum Diddy Doo online. Hum Diddy Doo is an English language song and is sung by Fats Domino. Hum Diddy Doo, from the album Rockin' & Rollin' with Fats Domino, was released in the year 2016. The duration of the song is 1:51. Download English songs online from JioSaavn.