We all know that the Beatles created a frenzy when they arrived in the US, but did you know that a journalist, mistaken for Paul McCartney, was nearly crushed in a fan frenzy? Or that a dentist in Canada bought John Lennon's tooth at an auction and now offers paternity tests to prospective Lennon offspring? Everyone from Tom Hanks to Bruce Springsteen weighs in with remembrances, and Brown examines the world the Beatles inhabited and the world the Beatles created.