You would think Festivus was invented for Seinfeld, but it was actually something one of the show's writers and his family ...

Nothin' but a mistake, indeed. Watch Backstreet Boys misguidedly force Jerry Seinfeld to sing the final chorus of 'I Want It ...

Jerry (Jerry Seinfeld), George (Jason Alexander), Kramer (Michael Richards), and Elaine (Julia Louis-Dreyfus), are awful people who often go too far in every episode to get what they want.