Is it any coincidence that successful NFL teams like the Bears, Browns, Giants, Lions, Packers, and Steelers don't have cheerleaders? The Wall Street Journal doesn't think so. Today, an article pointed out that these six teams, which have won four Super Bowls in the past six years and made up half of the teams playing in the big game, have something in common besides winning and cold Winters: no cheerleaders. Could the dancing, half-naked women be cursed? Not likely. But considering how superstitious athletes can be, professional cheerleaders might soon start worrying about their job security. In the meantime, let's take a look at the teams who do have squads and see how they brought some holiday cheer to the sidelines this year.