Put it at the reveal in a food or stream highlight, right after the delivery is shown, then follow it with a big cheer to keep the celebration going, and save a surprised reaction for the moment someone realises the pizza was free.
Über diesen Sound
This is a loud, high-energy voice clip lasting about five seconds, with Kai Cenat shouting in excitement that eight free pizzas have just arrived. It feels chaotic, hungry and gleefully over the top, like a sudden win announced at full volume for everyone nearby to hear.