Yay! SNL's Digital Shorts are often the only reason to watch the show, and this weekend's episode included one that's not exception. It's a holiday-themed ditty called "Best Friends" featuring Katy Perry and Andy Samberg along with special surprise guests Matt Damon and Val Kilmer, and a few baggies of meth! Because nothing says Christmas like some meth, a bag of Depends, and a game of Russian roulette. [NBC]