Tooth whitening could be crucial to achieving the X Factor. Reports in the tabloid press suggest that X Factor judge believes teeth can make or break a potential pop star. Yellowing, ugly teeth are it seems a definite no-no if you want to make it big in show biz. In fact, the Daily Mail recently reported how Simon Cowell told the recent X Factor finalists to get tooth whitening treatments. The fact that Cowell himself is known for his dazzling smile may have something to do with his comments, but Cowell, who has made it big in America, knows how crucial a Hollywood smile is. A confident, beautiful white smile is as necessary to success in the music industry as the music itself.