If you want to do Christmas and do it right, Amy Grant and Vince Gill's annual holiday show covers all the bases. A best-selling Christian artist who went pop with very solid results, Grant has recorded some interesting music: try 1982's "El Shaddai" or "The Next Time I Fall," a 1986 super-schlock hit she cut with Chicago bassist Peter Cetera. And of course, Grant has proved herself a master of Christmas music, as has her husband, Vince Gill. A formidable guitarist and singer, Gill is an all-purpose country artist. From his early days as vocalist for Pure Prairie League (that's Gill on their 1980 single "Let Me Love You Tonight") to this year's Guitar Slinger full-length, he's proven himself a flexible, affable virtuoso. Now in its fifth year, the show will feature seasonal music of all sorts along with the hits.