Yesterday was July 4th - just another day for most of the world, but for Americans it was their Independence Day, which they like to celebrate by eating, drinking, wearing red, white and blue and setting off fireworks.
Lots and lots of fireworks.
Chris Pritchard is a photographer and he had the best seat in the house last night.
Perched above Los Angeles, he captured this short video of all the fireworks displays spread out across the city.
It's quite a sight.
It kind of looks like an alien battle?