Susan Boyle has been asked to sing for Barack Obama, her brother has revealed. "Susan has been invited to the Fourth of July celebrations at the White House with the president," John Boyle told the Daily Record. "So as you can see, her dream is still very much alive. In fact, it's only just starting. Susan is exhausted, that's all there is to it. It's no surprise - she has gone from a small town in West Lothian to being famous around the world. She's been battered non-stop for the last seven weeks and it has taken its toll. But she'll be looking forward now to the Fourth of July."