Abstract: Embodiments of the present invention is directed to dynamically generating video data. Video data is dynamically generated on an end-user device while an existing video is being played at a speed slower than a playback speed on the end-user device. The video data is a continuous recording of a field of view of a camera when the end-user device is in a first orientation that is converted to the playback speed of the existing video for viewing. The field of view includes a user(s) who will be mimicking movements of a performer(s) in the existing video that is being played on the end-user device. When the end-user device is in a second orientation, the existing video is played at the play back speed and side-by-side with the video data. The first and second orientations of the end-user device can be, for example, a vertical orientation and a horizontal orientation, respectively.