So are you a one (wo)man band filming/editing their content? I’m not necessarily opposed to doing this with a (good) youtuber if the content is high-brow/interesting/educational etc but the idea of doing it for a tik tok star sounds positively dreadful. In fact I refused such a proposal before because the “stars” were really not my vibe and also they gave some red flags, but at least they were still “musicians” not JUST ad-peddlers.