Bing Crosby – Chestnuts Roasting On An Open Fire

“The Christmas Song” (commonly subtitled “Chestnuts Roasting on an Open Fire” or, as it was originally subtitled, “Merry Christmas to You”) is a classic Christmas song written in 1944 by musician, composer, and vocalist Mel Tormé (aka The Velvet Fog), and Bob Wells. According to Tormé, the song was written during a blistering hot summer. In an effort to “stay cool by thinking cool”, the most-performed (according to BMI) Christmas song was born.

Information from Wikipedia