White Christmas (weather) by Bing Crosby from the film "Holiday Inn", is the best-selling single of all time and speaks nostalgically of a traditional white Christmas. The definition of "white Christmas" varies. In most countries, it simply means that the ground is covered by snow at Christmas, but some countries have more strict definitions. In the United States, the official definition of a white Christmas is that there has to be a snow depth of at least at 7:00 a.m. local time on Christmas morning, and in Canada the official definition is that there has to be more than on the ground on
White Christmas (song) the song was written there. He often stayed up all night writing—he told his secretary, "Grab your pen and take down this song. I just wrote the best song I've ever written—heck, I just wrote the best song that anybody's ever written!" The first public performance of the song was by Bing Crosby, on his NBC radio show "The Kraft Music Hall" on Christmas Day, 1941; a copy of the recording from the radio program is owned by Crosby's estate and was loaned to "CBS News Sunday Morning" for their December 25, 2011 program. He subsequently recorded the song with