We're counting down the 12 Days of Christmas with daily mini-episodes spotlighting a classic holiday song and featuring an interview with the writer. On this fifth day of Christmas, we explore "That Spirit of Christmas" with co-writer Mable John. The first female artist signed to Motown, the sister of Rock & Roll Hall of Famer Little Willie John, and a long-time Ray Charles associate, Mable tells us all about the creation of the song that's probably best known as from the attic scene of the hit holiday film Christmas Vacation.