Check your frame to avoid any sharp lighting that directly falls on your face to get rid of any shadows on you and the background. Have light reflected on your face rather than have it come directly on your face. This avoids shadows.
Before recording your video on your phone, go to Settings and select Camera. Select the 1080 HD option at 30 FPS (frame per second). This will ensure a video of acceptable quality. A minute video with 1080 HD at 30 FPS will occupy approximately 60 MB of memory space.
Make sure to shoot your video only in LANDSCAPE mode (horizontal). Please avoid shooting in portrait mode (vertical). To record a stable video, fix your phone on a tripod or keep the device at your EYE LEVEL, not above or below.
Avoid having a window or light source behind you when you record. Make sure that light falls on your face from the front or from a side.
Focus the camera properly on your face before you start recording. Make sure your face is lit and visible clearly. Ensure your camera lens is not smudged.
Please submit your video file in .mp4 or .mov format.
Do not add effects on your voice. Make sure your voice remains natural while you sing.