Listen to It Must Be Jelly ('Cause Jam Don't Shake Like That) online. It Must Be Jelly ('Cause Jam Don't Shake Like That) is an English language song and is sung by Woody Herman And His Orchestra. It Must Be Jelly ('Cause Jam Don't Shake Like That), from the album Only Good Jazz Vol. 2, was released in the year 2016. The duration of the song is 2:51. Download English songs online from JioSaavn.