Last year's 'Community' Christmas episode ranks at the top of my list of favorite holiday-themed TV episodes ever. So how will this year's stack up?

Well there's no funny clay figurines or stop-motion animation, but that's not to say it won't be as magical or uncontrollable as Abed's adventure last season. I mean, we already know there will be a rap video. In 'Regional Holiday Music' (Thurs., Dec. 8, 8PM ET on NBC), the Greendale glee club is sidelined, so the study group has to step up to sing in their place.

I caught up with Joel McHale, Danny Pudi, Alison Brie, Donald Glover and Gillian Jacobs on the 'Community' set to hear more about their song-and-dance-filled holiday celebration, Troy and Abed's sweet rap, why this episode will be particularly gif-worthy and the "very awesome character" that 'Saturday Night Live' funnyman Taran Killam is playing.