Armed with a relentless determination but having no real connections in the industry, British R&B singer Shawn Emanuel single-handedly launched his career using the good old-fashioned art of persuasion and, of course, his talents. In 2003, while in his late teens, he simply approached the camp of Destiny's Child singer Kelly Rowland and convinced them to incorporate him into their European tour. So, by the time R&B star Beyoncé and rapper Kanye West came rolling through the U.K. for their res...