June 14, 2012: Every year, about 300,000 kids across the country will wind up in the emergency room because of a head injury on a bike. Prevention is as simple as wearing a helmet.
Christian Hartmann, Mario Anzuoni/Reuters
Everybody comes from somewhere, and that includes celebrities. Some even wandered the same high school hallways together back in their hometowns. Take a look at some stars who were high school classmates.