Jerry Seinfeld has done stand-up live for decades, and even made a movie about it, Comedian—but until last night on The Late Show with Stephen Colbert, when he's done stand-up on TV, there's usually a whole episode of Seinfeld between the beginning and end of his set. On Colbert's show, Jerry Seinfeld proved that he can still do that thing he does without a President making a guest appearance or even an ensemble comedy written with Larry David—he just went up and told jokes. He told very Jerry Seinfeld jokes during his "tight five" (what comedians call a sure-fire short routine) about words like donut holes and the moral implications of buffets. 

Sources: The Late Show with Stephen Colbert