Late Night Highlights: Jennifer Lopez's Diva Test, Obama's Gaywatch and Shatner's '80s Classic

Last night, Jay Leno decided to get to the bottom of those nasty diva rumors swirling around Jennifer Lopez when the actress stopped by to promote her movie The Back-up Plan. So he did what anyone with a late night talk show would do -- set up a softball diva quiz, asking her questions like, "When was the last time you were on a bus?" and "Have you ever just flipped your underwear inside out instead of getting a new pair?" Makes sense, right? After the jump, Leno's scientific conclusion on the matter and the other clips you missed while vowing to never go undercover as an eastern European slaughterhouse worker again.

6. When Kaley Met Paul

Big Bang Theory star Kaley Cuoco and Paul Shaffer have been out to dinner together before -- and the pair told the tale during last night's Late Show.

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