papyrus is of course sir pentious nyeh heh heh so do a very silly voice for him. also sir pentious sings a good amount but of course not as much as alastor. sing what you want does not have to be from undertale or hazbin or helluva boss it can be whatever your heart desires like how papyrus desires spaghetti

Sir Pentious is bombastic, flamboyant, short-tempered, temperamental and persistent, and his personality seems to take cues from the classic "mustache-twirling" stock villains. He takes tremendous pride in his grandiose ideas of how evil and cunning he is, and at one point even openly declares "I'm so evil!"