Gilbert Gottfried - Dirty Jokes - A little boy...

From "Dirty Jokes," Gilbert tells a joke about a little boy, fumbles over the punch-line and messes it up completely. He then recovers amazingly and re-does the joke as Alan King, Bill Cosby, Jackie Mason, and of course, Jerry Seinfeld. When he actually does get it out, it's absolute gold, especially the Seinfeld version!