This is a unique thing as a pair of very popular carols come from composers of musicals. Meredith Wilson, Jerry Herman and even Frank Loesser wrote one of them and they are quite popular. Meredith Wilson wrote “It’s beginning to look a lot like Christmas” as well as a musical adaptation of A Miracle on 34th Street, Here’s Love. Jerry Herman wrote that song “We need a little Christmas” from Mame. Loesser’s contribution is “Baby it’s cold outside”. There are many more song about Christmas in musicals as well.
I hope that you all have a Merry Christmas.