Ever hear the theory that everyone has a twin? Some believe that each and every person has a double somewhere on Earth. Whether that theory is true is debatable. However, it's uncanny how some celebrities resemble each other. Sometimes it's an obvious trait: similar hairstyle, body type or facial features. Other times it's more subtle: similar roles or names.

Whatever the reason, the following stars have something about them that makes them look like another famous somebody. And that's not always a good thing.

1.) Perhaps it's the enormous beer gut that makes this trio seem r...

On Nov. 11, several Hollywood stars are scheduled to attend a celebrity-studded fundraiser and pre-auction reception for the victims of Hurricanes Katrina, Wilma and Rita to benefit Save the Children. Included in the auction is a record-setting $440,000 Porsche driven by Jay Leno and David Donohue.

In Atlanta on September 7, 2005, history was both made and remembered when a Porsche Carrera GT production car, driven by racecar driver David Donohue and "The Tonight Show" host Jay Leno, set a series of Grand American speed records at Talladega Superspeedway, where David's father, Mark Don...