TikTok challenges are popular trends on the social media platform TikTok where users participate in specific tasks or activities, often set to music. These challenges can range from dance routines to creative stunts, and they encourage users to showcase their skills or humor. Participants typically film themselves completing the challenge and then share their videos using a specific hashtag. This helps create a sense of community as users can easily find and engage with others who are taking part in the same challenge. Some challenges even go viral, attracting millions of participants worldwide.