This is the most random foursome ever.
But, you know what?? We likey!
Katy Perry made her debut as host on SNL last night and who knew that THIS was going to happen!
In a HIGHlarious digital short, Katy becomes holiday BFFs with Andy, Matt Damon AND Val Kilmer.
And to see more of Katy's funniest sketches, click AFTER THE JUMP!