Christmas music a version by American "a capella" group Pentatonix which had already been released on their Christmas album shortly before Cohen's death, were added into Christmas music playlists on radio stations in the United States and Canada. Christmas songs introduced in theater, television, and film include "White Christmas" from "Holiday Inn" (1942), "Have Yourself a Merry Little Christmas" from "Meet Me in St. Louis" (1944), and "Silver Bells" in "The Lemon Drop Kid" (1950). Some musical films have been set around Christmas time, and because of that some of the songs are popular during the holiday season, including: A popular form
White Christmas (song) hit song: "Be Careful, It's My Heart". By the end of October 1942, "White Christmas" topped the "Your Hit Parade" chart. It remained in that position until well into the new year. It has often been noted that the mix of melancholy—"just like the ones I used to know"—with comforting images of home—"where the treetops glisten"—resonated especially strongly with listeners during World War II. A few weeks after the attacks on Pearl Harbor, Crosby introduced "White Christmas" on a Christmas Day broadcast. The Armed Forces Network was flooded with requests for the song. The recording is noted for Crosby's whistling