“Let It Snow! Let It Snow! Let It Snow!” by Dean Martin (8/20)

This tune from 1945, without which no Christmas is truly merry, was written in California during a heat wave, as the writers fantasized about a chilly day. Dean’s version was released in 1959 and was an instant hit. Interestingly, even though it’s considered one of the most iconic Christmas tunes, the lyrics mention no holiday by name.