Transcript for Mark Hamill sings 'Jingle Bells, Batman Smells' as the Joker
So we end this show always ends in song. The first time you've been on rise. It's like the master voices you Alec Guinness is green well. You learn manners and forward. Oh by that Billy about how Bulent about a voice actor is that it's a character actor's dream come true because they cast with their ears not their eyes and I never would have gotten to the Joker physically I'm not ripe for it. But maybe that's that song we should see maybe we should jokers say. Seems those bad loans back and metals rob me that hey you get the bat mobile are ultimately you know the joke Uggla delay he.
This transcript has been automatically generated and may not be 100% accurate.