Earlier this week, Blink182 drummer Travis Barker announced that he wouldn't be joining his band for a concert in Australia because he was too afraid to fly Down Under. (With good reason -- Barker was involved in a horrifying 2008 plane crash in South Carolina that claimed the lives of four people, two of whom were his best friends.
But Barker is hardly the only celebrity to experience fear at seemingly everyday things. From David Beckham to Oprah Winfrey, Hollywood hotshots have copped to having pretty unusual phobias. Flip through the gallery below to learn more about what scares the bejeezus out of these stars.