Cheerleaders! Something about them makes most red-blooded American males begin frothing at the mouth. It's ingrained into American culture from the time we're tykes: boys -- like the cheerleaders; girls -- be like the cheerleaders. So it's with mild fervor each fall that the annual cheerleader calendar for the upcoming year is issued. From high school lockers to the walls of mechanic shops to the lap drawers of law offices, this calendar is ogled -- at least twelve times a year, anyway. Here's a sneak peak at the 2011 calendar, which was released over the weekend at The Track, a go-cart race venue in Centennial. (Proceeds from this event benefit Boys & Girls Clubs of Metro Denver as well as the Kempe Foundation for the Prevention and Treatment of Child Abuse and Neglect.) See the Denver Broncos Cheerleader 2011 Calendar release party slideshow here. Photos by Coleen Whitfield.