YouTube does the Harlem Shake
Google has always shown their geeky and cool sense of humor and the latest easter egg on YouTube continues to show that. Just go to YouTube.com and search for "Do the Harlem Shake" and watch the entire website move to the beat of Harlem Shake.
It starts off with the YouTube logo starting the shake just like a character in the Harlem Shake video does before going all out with the entire list of thumbnails moving to the beat. Well done Google.