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) John's and Crosby's songs to be "winners" by stating that John's recording is the "best-selling single since UK and US singles charts began in the 1950s," while maintaining that "the best-selling single of all time was released before the first pop charts," and that this distinction belongs to "White Christmas," which it says "was listed as the world's best-selling single in the first-ever "Guinness Book of Records" (published in 1955) and—remarkably—still retains the title more than 50 years later." In 1999, National Public Radio included it in the "NPR 100", which sought to compile the one hundred most important American