Jimmy Kimmel and Matt Damon have had a long standing comic fued going. It all started during the third season of ABC's Jimmy Kimmel Live, when the host made a tradition of closing out episodes with, "Apologies to Matt Damon, but we ran out of time," even though the actor was never scheduled to come on the show. The joke continued in September 2006 when Damon finally appeared as a guest. After a segment which explained the gag – and a lengthy introduction by Kimmel – Damon sat down, only to have the host cut him off and end the show. As planned, the actor unleashed a flurry of curse words on Kimmel and proceeded to storm off the set. His performance was so believable, many fans thought he was truly upset.
Now it was Damon's turn to get back at Kimmel. With the help of Kimmel's girlfried, Sarah Silverman, the two made a hilarious video called "I'm F*****g Matt Damon" it's really funny! I http://www.youtube.com/watch?v=LA5BnTrFAx0, now in retalliation Kimmel and Damon's BFF Ben Affleck have made their own video called "I'm F*****g Ben Affleck" which is equally hilarious. http://www.youtube.com/watch?v=kVv4A0r3wxU The new video features cameo's of several celebrities including Cameron Diaz, Harrison Ford, Brad Pitt, Robin Williams, Huey Lewis, Joan Jett. Macy Gray, Don Cheadle and several others in a parody of We are the World. I laughed so hard through both of these videos I had to watch them several times each lol.