Bart: Please, you have something of mine on a little piece of paper.

CBG: Oh, so you're Bart Simpson, eh. Well since my breakfast burrito
is congealing rapidly I will be blunt. I sold your soul last night.
I found a buyer right away for that item.

Bart: Who?

CBG: I am not at liberty to divulge the party, but they were most
interested in having possession of little boy's soul.

Bart Sells His Soul (Episode 3F02)