The streets of Mexico City have been taken over by zombies. But don't worry - it was all in aid of a world record.
Nearly 10,000 people splattered themselves in fake blood as they took part in the largest ever zombie walk.
The Mexican parade of the living dead beat the previous world record held by the USA.
Zombie walks have grown in popularity worldwide in recent years. The craze for dressing up as the "living dead" has been fuelled by movies and TV.
We think the Newsround office should hold its own zombie parade. You should see the state of some people first thing in the morning.