Andre Williams - Christmas Wish
Andre Williams - Po' Mr. Santa Claus
Aretha Franklin - Blue Holiday
Aretha Franklin - Kissin' By The Mistletoe

Then some Motown, though I don't know if all of them are too obvious.

Jackson 5 - Christmas Won't Be The Same This Year
Kim Weston - Wish You A Merry Xmas
Michael Jackson - Little Christmas Tree
Miracles - Christmas Every Day
Temptations - My Christmas Tree
Temptations - Silent Night, Holy Night

I'll check to see if any of them are on YouTube.

Kelton