Listen to Gilbert & Sullivan- The Pirates Of Penzance - When A Felon's Not Engaged In His Employment online. Gilbert & Sullivan- The Pirates Of Penzance - When A Felon's Not Engaged In His Employment is an English language song and is sung by Arthur Seymour Sullivan. Gilbert & Sullivan- The Pirates Of Penzance - When A Felon's Not Engaged In His Employment, from the album The Best of Gilbert & Sullivan, was released in the year 2020. The duration of the song is 2:40. Download English songs online from JioSaavn.