Bing Crosby struggled to sing 'White Christmas' to troops, ‘most difficult thing’ in his career

For soldiers in France listening to Bing Crosby sing "White Christmas" in December 1944, home must have seemed far away. 

The legendary crooner, who first sang the song that reminisces about snowy childhood Christmases, once told his nephew, Howard Crosby, that singing "White Christmas" in front of teary-eyed troops ahead of the Battle of the Bulge was the hardest moment of his professional life.

"I asked Uncle Bing one time, ‘What was the single most difficult thing you ever had to...