Matt Damon has been a good sport about being the butt of a long running joke on The Jimmy Kimmel Show, as Kimmel would often end his shows with "apologies to Matt Damon, we ran out of time," even recently going so far as to have his parking security guard Guillermo snub him on the red carpet for the premiere of Ocean's Thirteen -- "can you come back for Ocean's 14?"
For the fifth anniversary of Kimmel's show, comedian and long time girlfriend Sarah Silverman put together this hilarious music video with Matt Damon, revealing their secret tryst. After a folk-like introduction by Silverman, the song moves into a rock feel, with Damon joining in, parroting Silverman and referring to himself in the third person with "she's f*cking Matt Damon."
From there it moves into different styles, including a hilarious turn at bad boy band rap, before fading back into Silverman's folk speak ending. Damon, of course, ends it with a "Jimmy... we're out of time, sorry" and finally on last use of the third person:
"Let's put that guitar down and go f*ck Matt Damon."
It's probably just me, but it brings to mind Damon's cameo in the awful-yet-often-seen comedy Euro Trip, revealing that he's f*cking the main character's girlfriend (played by Kristin Kreuk) in a song called "Scotty Doesn't Know" (by the band Lustra).