Listen to Papa Wants To Knock A Jug online. Papa Wants To Knock A Jug is an English language song and is sung by Leroy Carr and Scrapper Blackwell. Papa Wants To Knock A Jug, from the album Volume 1: "How Long Has That Evening Train Been Gone", CD C, was released in the year 2008. The duration of the song is 3:06. Download English songs online from JioSaavn.