"Gangnam Style" is officially (finally, mercifully) over. Which means we need a new dancing craze/meme to fill its place. With that, may we introduce you to: The Harlem Shake.
The premise is simple: The videos are about 30 seconds long and set to "Harlem Shake" by New York deejay Baauer. For the first 15 seconds, one person dances (or just humps the air) while everyone else in the room acts normal. Then, the beat drops and all hell breaks loose.

Wikipedia
Harlem shake
The Harlem shake, originally called the albee in Harlem, is a dance that started in 1981. The dance became mainstream in 2001 when G-Dep featured the Harlem shake in his music video Let's Get It. It has its history from an North-East African or Ethiopian (Abyssinian) dance called "Eskista" and was allegedly started in Harlem by a man named Al B. Its ancient form "Eskista" is still used in Ethiopia today


Source: [link to sodere.com]

[link to abcnews.go.com]

Video indigenous african tribe dancing on the Harlem Shake