Here is a brief list of things that happened during Jennifer Lawrence's appearance on 'The Late Show' last night: she sang with host David Letterman, the duo discussed tummy troubles, they chatted about bowling, they both totally biffed introducing a clip, Lawrence begged Letterman to not retire, Lawrence did a Chris Farley impression, they walked out during a live taping, and then Lawrence took over the entire show.

Eventually, that clip was introduced, but only after Letterman and Lawrence turned in an all-timer of a late night chat show visit. Lawrence may have been on hand to talk about the next 'Hunger Games' film—a film that, she confesses, she can't tell from the other ones, at least when it comes to marketing them—but the result was actually an instant classic of a 'Late Show' experience.

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