I just did a Google search (in the Safari search box) for "the scream", the painting by Edvard Munch. I just wanted a high-quality image of the painting. Well, I saw the painting was Google's logo, so I thought I might have found some bizarre Easter Egg, but today is Edvard Munch's birthday. What are the chances?
Yeah, kinda freaked me out, heh. I wonder if they do it every year.... I don't remember seeing it last year.