On this Christmas Eve, here are two versions of "The Christmas Song," written in 1945 by Mel Torme and Bob Wells.
The song, below, is performed by two of the greatest of American vocalists: Rosemary Clooney, and Nat King Cole.
The performance by Ms. Clooney, as noted in the YouTube description, is from a 1956 episode of her 1956-1957 TV program, The Rosemary Clooney Show; the program was a syndicated broadcast. At the start of the video, she refers to Bob Wells and Mel Torme (Mr. Torme, the description indicates, appeared on the telecast).
https://www.youtube.com/watch?v=VAC-TxY7Glg&list=RDVAC-TxY7Glg&start_radio=1
Nat King Cole and his Trio made the first recording of "The Christmas Song" in 1946, though this first version, according to Wikipedia, was not released until 1989. Mr. Cole subsequently released three other recordings of "The Christmas Song"--another in 1946, one in 1953, and another in 1961. Wikipedia notes that the 1961 recording "has become the most popular/familiar version" of the song.
The video, below, is not dated, though I am guessing it is from one of Mr. Cole's NBC-TV programs, which, like Ms. Clooney's syndicated show, aired weekly in 1956 and 1957.
https://www.youtube.com/watch?v=A8eWaR8ONvw&list=RDA8eWaR8ONvw&start_radio=1
Here, too, is the Wikipedia page about "The Christmas Song":
https://en.wikipedia.org/wiki/The_Christmas_Song
Merry Christmas!