It's nearly here - the first 'The Simpsons' and 'Family Guy' crossover episode.
A five-minute clip was previewed at the San Diego Comic-Con this weekend and it looks amazing.
The Griffins arrive in Springfield and are initially given a warm welcome by the Simpsons, despite both being suspicious of each other's colouring.
Peter warns his family: "Don’t drink the water around here… everyone around here looks like they have hepatitis."
Inevitably things turn a little with an argument over beer turning into a full-blown nuclear-powered brawl.
It's bound to be a classic
The one-hour special will be aired in September.