UNIDENTIFIED CHORUS: (Singing) J-I-N-G-L-E bells. SIMON: Ah, jingle bells. Don't worry. Not going to sing along, but I would like to pose a question. How did those bells become a symbol of this ...

would have instrumental music. And then they would include a section called the Dandy Darkies (ph), where they would have white men in blackface perform pretty standard songs. And "Jingle Bells ...