Irving Berlin wrote the lyrics to "White Christmas" in 1940. Bing Crosby, who starred in the 1942 movie "Holiday Inn" with Fred Astaire, sang the song for the movie, on the radio and recorded it for Decca on May 29, 1942.
Being Jewish, Berlin could draw only on what he remembered of Christmas celebrations in his neighborhood during his childhood. When he auditioned the song in 1941, he expressed concern that it lacked something. However, Bing Crosby assured him that the song would be a hit. "White Christmas" remains Bing Crosby's top-selling recording and the top-selling Christmas single of all time as of May 2015.