Letterman Held a Rat Who Wore a Tux: Rat Loving Guest Gave Fashion Show Using Rats as Models

David Letterman gets a lot of interesting guests on his show. The rat lady is sure one that no one will ever forget. She came on the show with a box full of rats who all had names and each had a costume that was specially designed for the personality of the rat.  The one above was wearing a tutu with sparkles.