Letterman gives Paris Hilton a good slappin’

This clip of Paris Hilton appearing on Letterman the other night is a reminder of something I occasionally forget: David Letterman is a national treasure. He may have gone a little soft in recent years, but this merciless — and funny — skewering of Paris’ vapid, self-absorbed stupidity is a classic. It’s like an interview he would have done in the old days.

I especially love the part where she pretends to be sad and hurt and Dave doesn’t fall for it. Priceless.