"Christmas Rappin'," Kurtis Blow (Mercury)

From 1979, one of the earliest rap records -- it actually came out before the artist's breakthrough "The Breaks" -- and definitely the first rap Christmas tune, unless you count "A Visit From St. Nicholas," aka "The Night Before Christmas." Kurtis cops the lick from Chic's "Good Times" and starts testifying, and never lets up. Important from a historic point of view, but useful for holiday booty-shaking, too. If you feel like you have a rap in you, the flip side of the original 12-inch single is an instrumental version, though that version seems to have been lost with the sands of time, unless you're willing to search out the original vinyl.