What's the best way to disable an AT-AT? It's elementary! Tie a rope around the machine's feet until it trips, while riding your unicycle and playing a Star Wars tune on your flaming bagpipes. We learned that secret in The Empire Strikes Back. Since we know from the trailers that there are AT-ATs in the new movie The Last Jedi, the Unipiper donned a rebel pilot uniform to demonstrate the tactic for the new generation of Star Wars characters.
The Unipiper (Brian Kidd) performs all this in front of the most appropriate backdrop for his act. -via Laughing Squid