X Factor winner Matt Cardle is Christmas Number One with debut single When We Collide

By SARAH BULL Success: Matt Cardle, seen out in London last night, has achieved the Christmas number one X Factor winner Matt Cardle has clinched the Christmas Number One with his debut single When We Collide.The 27-year-old singer's cover of Biffy Clyro's track sold 439,000 copies in six days, and beat stars including Rihanna to the coveted top spot.After finding out he had achieved the