“White Christmas” is the best-selling song of all time, having sold over 100 million copies. Written by Irving Berlin, who was Jewish, and originally sung by Bing Crosby in the 1942 movie Holiday Inn, “#WhiteChristmas” won the Academy Award as Best Original Song and was the pre-arranged signal played on Armed Forces Radio on April 30, 1975, as a signal for Americans to evacuate Saigon, ending the Vietnam War. Legend has it that Berlin, who often stayed up through the night writing, told his secretary one morning, “Grab your pen and take down this song. I just wrote the best song I’ve ever written. Hell, I just wrote the best song that anybody’s ever written!”