When the calendar turns to December, people love busting out their Santa hats. When a girl decides to don a Santa hat, it's awesome. When they put on their Santa hat and are really hot and sexy, then that adds something extra to the equation. These are the hottest pictures of girls wearing Santa hats. And it rules. Vote on your favorites pics of hot girls wearing Santa hats. Which of these gals should be at the top of the list? Should it be a celebrity like Mariah Carey or Katy Perry? Or should it be just a run of the mill hot chick? That's up to you to decide, so choose wisely. There's a reason why they call this the most wonderful time of the year and these pics are photographic evidence of why.