idol au/streamer au/famous person au where one idol has merch of a competitor/rival idol and whenever they do a stream all the merch is in the background and chat is yelling about it ("YOU'RE ALSO A [insert fandom name]??" "is that a LIMITED SIGNED POSTER" "yo isn't that [insert rare merchandise] expensive af") and the idol is nonchalantly agreeing to it ("I've been here before you lot, step up your game." "A good writer reads, a good artist looks at other art, but when I listen to other's music--") and they keep complaining about how the rival idol keeps going on tour right when they're going on tour, or how their rival streams whenever they're streaming, not because it takes away their views, but because they can't go to the concerts/watch the streams
so chat asks about if the idol has ever gone to their rival's fansignings they're like "no, the shame would kill me. never meet your heroes" (they've the rival idol before, so this is nonsense on their part), and eventually the clips manages to get to the rival idol, and the rival idol posts it on their social media basically saying "if you come to a fansigning, I'll give you this special signed merch that's really expensive <3" and now everyone has to watch the idol have a public crisis ("No, I can't go, I have principles.... 'but you don't have the merch' - you make a very good argument.")
