A duet is a social video format where a user creates a new video beside or in response to an existing video.
Duets are commonly used for reactions, commentary, collaborations, tutorials, challenges, and community participation.
They can help content spread because each new response connects back to the original idea.
A duet performs best when the response adds something new, such as context, humor, expertise, disagreement, or a useful demonstration.
Duets are a TikTok feature, showing your video side by side with the original. Other platforms have equivalents, like Remix on Instagram Reels and collaboration formats on YouTube Shorts.
Adding something the original did not have: expertise, a reaction, humor, a counterpoint, or a demonstration. Duets that merely watch the original rarely earn attention.
Yes. You can allow or disable duets per video or account-wide in your settings, which matters for brands that want to limit how their content is remixed.