pbr Susan Boyle has made a rare public appearance at a book-signing in London.br ppbr The Scottish singer appeared at a branch of Waterstones at the launch of her autobiography The Woman I Was Born To Be.br ppbr SuBo rose to fame after her audition for Britain's Got Talent became an internet sensation.br ppbr Fans queued from early on Saturday morning to get the chance to meet the 49-year-old as the first copies of her autobiography went on sale.br ppbr Her publisher described The Woman I Was Born to Be as the "story of her life and the challenges she has struggled to overcome with faith, fortitude and an unfailing sense of humour".br ppbr Boyle's second album The Gift is due out next month.