Words can't even explain the awesomeness that is this video. To celebrate her bf's 5th anniversary show, the hilariously crass Sarah Silverman surprised late-night host Jimmy Kimmel with a pre-taped music video featuring none other than Matt Damon. The only thing funnier than the lyrics of her song, "I'm f***king Matt Damon" are his wicked dance moves (he rides that pony like pro). Matt Damon was always considered a cool guy in our book, but he has taken it to a whole new level after watching the video.