A choir of wives of soldiers serving in Afghanistan topped the British singles charts Sunday, beating X Factor winners Little Mix to the Christmas No. 1 spot and outselling the rest of the top 12 put together. “Wherever You Are” by Military Wives, a song written using excerpts from letters sent between military couples, sold 556,000 copies, the Official Charts Company said. All proceeds from the single go to The Royal British Legion and the Soldiers, Sailors, Airmen Families Association. The 100-strong Military Wives choir dislodged from the top spot a cover of Irish singer-songwriter Damien Rice's “Cannonball” by Little Mix, a group of four girls that won this year's X Factor television singing contest.