First there was The Harlem Shake. Then there was The Running Man Challenge. Now, the new viral video trend sweeping the nation is The Mannequin Challenge. It’s a pretty simple idea: Everyone freezes in place as if they were a mannequin, while somebody else walks around and films it.

High school, college, and even professional sports teams are getting in on the action now, as well as entire schools. Take a look below at some of our favorite Mannequin Challenges, and be sure to tag us in your own videos!