Look for the key change at 1:34, what a great song.
Otis Redding, “Marry Christmas Baby”
When I first heard this song, I was at a bar in Brooklyn and was all “Weird, I never heard this Ray Charles song before and DAMN WHAT A GROOVE, how could I have missed this?”
While the artist name may have been incorrect in my head that night, the sultry and steady groove remains. Check it.