Duet is a feature on TikTok that allows users to post their video side-by-side with a video from another creator on the platform. A Duet contains two videos in a split screen that play at the same time. To create a Duet, users need to find the video they want to Duet with and open the Share menu. Then, they can select the Duet option and start recording their video. Users can choose from the filming options on the side panel and edit their video before posting it. It is important to note that not all videos have Duet enabled. Users must have a public account to allow others to Duet with their videos. They can choose who can Duet with their videos in their account privacy settings. If users allow others to Duet with their video but then change their settings to limit who can use their video or delete their video, any existing Duets that have already been made will remain on TikTok.