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 fourth day of Christmas, we explore "Feliz Navidad" with writer and original performer Jose Feliciano. The Latin Songwriters Hall of Famer and 7-time Grammy winner tells us all about the creation of his holiday hit that's since been covered by Michael Buble, Celine Dion, Kacey Musgraves, and Garth Brooks & Trisha Yearwood.