Iz.Mohsen's Mannequin Challenge, Mix 'Black Beatles' by Rae Sremmurd and "Persian Dance Song"
The mannequin challenge is where a person or group of people take part in a short video – but they all appear to be frozen in time like mannequins.
The camera will then wind through the scene, with close-ups of motionless participants.
The idea is that nobody in the scene even blinks as the camera is moving past, making it seem like they are not real people.
Sometimes, at the end of the scene everyone starts moving – almost to the surprise of the person viewing the footage.