Listen to Bellas' Bash online. Bellas' Bash is an English language song and is sung by Bobby 'Boris' Pickett and The Crypt-Kickers. Bellas' Bash, from the album The Original Monster Mash (Remastered 2015), was released in the year 2015. The duration of the song is 2:48. Download English songs online from JioSaavn.