Perhaps you're in the middle of preparing the tradition big feast for your friends or you're packing up to hit the road and spend time with your family, but it's important that we all take a moment and remember what this holiday is all about. Hats. That's right, National Hat Day is all about hats. Sure, it might be about friends and family now, but the original purpose of National Hat Day was to celebrate hats. Let's all take a few moments out of our celebrations and honor hats by counting down the Top Ten Hottest Celebrities in Hats.