The Mannequin Challenge By now, you’ve inevitably seen or heard of the ‘Mannequin Challenge,’ which has gone viral in recent months all over social media. The Mannequin Challenge is the “latest craze” to sweep the internet with some big names like Hillary Clinton joining the frenzy. The hashtag #MannequinChallenge is being used for popular social media platforms such as Twitter and Instagram. The Mannequin Challenge is a viral video craze featuring people imitating mannequins and freezing for the camera while music plays in the background. Top rated mannequin challenge videos. GBC