19. Emmylou Harris, 'Light of the Stable'
Harris has always sung like an angel, and on this 1979 album she played the part, a living herald of joyful Nativity tidings. Some of the other golden-throated seraphim providing backing vocals: Linda Ronstadt, Dolly Parton, and, er, Neil Young. On an album that's both rootsy and restrained, Harris is backed by a top-notch group of Nashville pros, but the prettiest track is probably the a cappella version of "The First Noel."