In the last sales charts before the the U.K.'s prestigious Christmas No. 1s are unveiled next Sunday (Dec. 23), 2012 "X Factor" winner James Arthur smashed to the top of the singles survey with "Impossible." The track easily becomes the fastest-selling single of the year with massive first-week sales of 490,000, according to the Official Charts Company. Bruno Mars seized a record of his own, as "Unorthodox Jukebox" became the fastest-selling solo artist album of 2012 with 136,000 sales.
