Shania Twain has been excitedly gearing up for her new Las Vegas residency with her fans beside themselves with anticipation too and on Friday the country music star delivered a heartfelt message which got them all talking. The singer looked radiant in a throwback photo she used to send an emotional tribute to her social media followers.MORE: Shania Twain sets pulses racing in strapless dress and cowboy hatHer Instagram post ahead of her new show read: "I have the best fans in the world! I can't