jon glaser. uh, he has a -- [ cheers and applause ] "jon glaser loves gear." it's on trutv. it's hilarious. jon -- "jon glaser loves gear." and then tonight, we got some good music. you guys like good music? [ cheers and applause ] my man niall horan is here. [ cheers and applause ] he's a good man. "this town", "this town" is the name of the jam. want to hear a little bit? yeah, here it is. here's the jam. ?? ? as if the whole world was watching i'd still dance with you >> jimmy: drive highways and byways ? ?? highways and byways. >> steve: both. >> jimmy: drive highways and byways, man. [ light laug ] guys, we have -- can we just check in on santa's reindeer? to see how many -- >> yay aiden and caden. whoo! now the girls. on joey, on chloe, on -- >> jimmy: guys, we have exactly nine shows -- we have nine shows left, before we go on christmas break. >> steve: nine? >> jimmy: only nine. which means that it's time for that beloved "tonight show" tradition. it's time for "12 days of christmas sweaters." [ cheers and applaus nine days left ? >> jimmy: that's right! every ow ben