If you haven't caught these yet, you really must:
First up, Sarah Silverman's "I'm f*cking Matt Damon", on the Jimmy Kimmel show.
Then you have to watch Kimmel's response "I'm f*cking Ben Affleck".
I think Kimmel wins on points, for a successful conceptual execution and the dazzling surplus of celebrity participants.
Of course, Silverman deserves extra credit for having taken the initiative in the first place.