You know how you kind of wonder whether celebrities are all friends with one another? Like, do they all go to each other's houses in Los Angeles and play parlor games on Saturday nights? Has Natalie Portman, for example, ever had to do Benicio Del Toro during the charades portion of Celebrity — which required her to point at her friend Scarlett Johansson sitting on the couch and then do a pantomime of having sex in an elevator? Well, we've always imagined life in La La Land to be like that. You know, like everyone has sort of all slept together and given one another weird, unfunny nicknames. And sometimes there are moments in pop culture that confirm our suspicions. This weekend had one of them, and it wasn't the Oscars. No, the biggest clue that being famous is like being on the indoor-track team in high school was actually Jimmy Kimmel's brilliant musical debut, "I'm Fucking Ben Affleck." It was, of course, a follow-up to Sarah Silverman's "I'm Fucking Matt Damon," and although the musical caliber is a lot lower, the self-loving celebrity rate is off the charts. Click above to enjoy. It's like Ocean's Twelve, but watchable.