There are numerous "hastag challenges" taking over social media. They range anywhere from dances to rapping to not moving. Yes, you read that right... not moving. Enter the Mannequin Challenge (or as it shows on Instagram, #MannequinChallenge).

It seems easy, but getting an entire group of people to be still for more than a couple of seconds is way harder than you may think.

The Mannequin Challenge has been performed by everyone from Hillary Clinton to sports teams to just about every famous person you can think of. The song most often used in the background (or at least it was in all the original challenges before copyright infringement became an issue) is Black Beatles by Rae Sremmurd, which is Ear Drummers spelled backwards.