but i'm curious to understand the allure of fame in today's los angeles, where tiktok and instagram can change a person's life overnight, for better or for worse. so i'm here with rave, kiera, and aaron, members of a tiktok collective called vault house. they spend their days dreaming up the next viral sensation, and they've invited me over to raise the average age in their house by like four decades. - ok what are you doing on your phone when you're researching for your writer's room? - definitely looking for trending videos. - or sometimes, it's just a trending audio. like, just a sound, or some music, or something like that that works, and then you just do your own kind of thing to it. - so what do you want to do today? let's brainstorm. let's figure it out. what's trending? - show him. - who's the meanest? - this is also us. - friend group. - yeah. you're gonna be in our friend group. - most likely to get into a fight? - that audio exists out there somewhere. - yes. - we're just going to-- - redo it. - but why does something go viral?