In this sketch, a girl is enjoying a beautiful day outside when a mean monster comes to spoil it. He makes it a rainy day, but then learns that the girl likes rainy days as well. He also does whatever he can to ruin everything that is beautiful to the girl. Eventually, as she enjoys the sound of a bird whistling, he shoots the bird, making the girl complain about him being awful, which he is proud of, but then he starts to shrink when she starts talking about him being so awful that he is beautiful.
This sketch was originally performed on The Ed Sullivan Show, featuring a generic muppet girl and Beautiful Day Monster (who got that name because of this sketch). Years later, in Episode 209: Madeline Kahn, the sketch was remade with Madeline Kahn and Doglion.