Do you know what’s all the rage in über-hip Los Angeles? Food carts. Wait, what? Aren’t those the trucks that serve up lunch at construction sites? That’s right. The mobile restaurant has hit it big. And it’s all thanks to Twitter.

It started with a Korean barbeque truck known for its tacos. It only comes out three times a day. There’s no way to know where it’ll be. That is, unless you follow it on Twitter. It sparked a full-blown craze. Unique mobile restaurants are popping up everywhere.