Lady Gaga Hats

Hat Hair

Religious/Sports Hats

Pope Hat

Yamaka

American Football

Baseball

Snowboarding, generally beanies

Water Polo

Polo

Racing Helmet

That's my Job/Safety First - Hats

Cyclist

Biker

Vietnam Marine

Napoleon, French Dictator

Cowboy

Vietnamese Farmer 

American Farmer

Painter/Artist

Baker

Police

S.W.A.T. Team

Astronaut - don't be prejudice, helmets are hats also.

Explorer... sort of.

Construction Worker

Animal Hats

Sun Hats

Bowler Hats

My favorite surrealist, Rene Magritte

Top Hats

This is true style

.

These last two speak for themselves.