Listen to Rub a Dub Riddim online. Rub a Dub Riddim is an English language song and is sung by Kemar Flava McGregor and Stephan Warren. Rub a Dub Riddim, from the album Riddims of Flava McGregor, Vol. 4, was released in the year 2015. The duration of the song is 3:58. Download English songs online from JioSaavn.