Upload a 30s clip from your music video - choose a catchy part of the song and trim the length on you're photos app. If you don't have a music video, upload a video of you performing the song (e.g. rapping along to the song in the studio etc.
Upload two organic iPhone camera style video clips of yourself. We recommend you don't rap in these and ideally they should be at least 20s long - they can be you vibing to the song, lifestyle clips, behind-the-scenes, on stage etc. The audio from these videos won't be used so these can be using any song.