TikTok’s platform is largely fueled by viral videos of users doing weird, creepy, or funny things. On the platform, these trending and meme videos usually come with a hashtag that includes the word challenge. But what is a TikTok challenge, and how do you find or create one? Here’s everything you need to know.

At its most basic, a TikTok challenge is a call to action and record it via TikTok video. Typically, these challenges stem from viral TikTok videos that usually feature a song, dance move, movie quote, etc. Of course, no challenge is complete without the defining hashtag in the video description.

There are hundreds of TikTok challenges to try, including dance challenges, reaction challenges, song challenges, and more. Some of the recent viral favorites include:

This is just the tip of the iceberg of the TikTok challenge world. It seems like a new challenge is born every day.