They blame you when they get in trouble. They seem like your parents' favorite. They are the only enemy you can't live without. Almost everyone has a juicy story about their siblings--even famous people. Meet those who got along, those who didn't, and everyone in between!<br> <br> * Demi Lovato and her sister<br> * Tennis superstars Serena and Venus Williams<br> * Walt and Roy Disney<br> * Princes William and Harry<br> * Stephen Colbert and his eleven older siblings<br> * Quarterbacks Peyton and Eli Manning<br> * The Jacksons (Michael, Janet, and family)<br> * Reality TV sensations, the Gosselins<br> * Queen Elizabeth I and the queen who history remembers as Bloody Mary<br> * Conjoined twins Chang and Eng Bunker<br> * John Wilkes Booth (the man who assassinated Abraham Lincoln) and his brother Edwin<br> * Vincent and Theo van Gogh<br> * Airplane inventors, the Wright brothers<br> * The Romanovs<br> * The Kennedys<br> <br> Oh, brother! This could get ugly. . . .