Jimmy Fallon is the host of this week's Christmas episode of 'Saturday Night Live,' and based on the new promos, it looks like it could be the funniest episode of the season. 

Not only is this Fallon's first time hosting since becoming the host of 'Late Night,' the musical guest Michael Buble is always game to star in sketches.

Will Fallon continue his 'SNL' tradition of breaking up into giggles during the show? Can he make it through these promos with Fred Armisen without laughing? Find out below.