human
I'd like to know the most popular hats in the world.
assistant
Hats have been around for centuries, and are still very popular today. They come in many different styles and colors, and can be worn for a variety of reasons, including protection from the sun or cold weather, style, and even religious reasons. Some popular types of hats include fedoras, baseball caps, cowboy hats, newsboy hats, beanies, bucket hats, and sombreros.