Jennifer Garner showed up to David Letterman's show yesterday, and she could've shown Kate Walsh a thing or two about how to make a "Late Show" entrance.
After alighting from her gigantic SUV, Jen was all smiles (but, seriously, when is she not?), posing patiently for a paparazzi wall, and when she emerged from the taping, she signed and signed and signed some more. Of course, even that wasn't quite enough for the autographerazzi, who groaned when she got back in the car.
Did we mention that she was smiling?