Sam Bailey, a prison guard who won this year's version of the British talent show "The X Factor", took the Christmas number one position on the UK singles chart with her debut release on Sunday. The 36-year-old mother-of-two sold 149,000 copies of "Skyscraper", a reworking of American singer Demi Lovato's 2011 hit, outselling U.S. singer Pharrell Williams' "Happy" by more than two to one. Last ...